New thumbnails, fixed school about page, new math lesson, and stuff

3 files changed, 54 insertions, 54 deletions

diff --git a/lessons/matematika/pangkat-akar/akar.html b/lessons/matematika/pangkat-akar/akar.html
index 35ed018..4665ae0 100644
--- a/lessons/matematika/pangkat-akar/akar.html
+++ b/lessons/matematika/pangkat-akar/akar.html
@@ -61,57 +61,57 @@
             <h1 id="definition">Definition</h1>
             Root is the inverse of exponent. For example;<br>
             <ul>
-                <li>4<sup>2</sup> = 16, <b>so <span class="root">16</span> = 4</b></li>
-                <li>5<sup>2</sup> = 25, <b>so <span class="root">25</span> = 5</b></li>
-                <li>10<sup>2</sup> = 100, <b>so <span class="root">100</span> = 10</b></li>
+                <li>4<sup>2</sup> = 16, <b>so <span class="sroot">16</span> = 4</b></li>
+                <li>5<sup>2</sup> = 25, <b>so <span class="sroot">25</span> = 5</b></li>
+                <li>10<sup>2</sup> = 100, <b>so <span class="sroot">100</span> = 10</b></li>
             </ul>
 
             <h1 id="simplification">Simplifying Square Roots</h1>
             You can simplify a root by factoring the root number another number that is rational. Or in other words, divide the root number by the perfect squares. For example;  
             <ul>
                 <li>
-                    <strong>Simplify <span class="root">60</span></strong><br>
-                    <span class="root">60</span> = <span class="root">4 &times; 15</span> = 2<span class="root">15</span><br>
+                    <strong>Simplify <span class="sroot">60</span></strong><br>
+                    <span class="sroot">60</span> = <span class="sroot">4 &times; 15</span> = 2<span class="sroot">15</span><br>
                 </li>
                 <li>
-                    <strong>Simplify <span class="root">48</span></strong><br>
-                    <span class="root">48</span> = <span class="root">16 &times; 3</span> = 4<span class="root">3</span><br>
+                    <strong>Simplify <span class="sroot">48</span></strong><br>
+                    <span class="sroot">48</span> = <span class="sroot">16 &times; 3</span> = 4<span class="sroot">3</span><br>
                 </li>
                 <li>
-                    <strong>Simplify <span class="root">125</span></strong><br>
-                    <span class="root">125</span> = <span class="root">25 &times; 5</span> = 5<span class="root">5</span><br>
+                    <strong>Simplify <span class="sroot">125</span></strong><br>
+                    <span class="sroot">125</span> = <span class="sroot">25 &times; 5</span> = 5<span class="sroot">5</span><br>
                 </li>
             </ul>
 
             <h1 id="root-operations">Root Operations</h1>
             <h2 id="root-operations--addition">Addition</h2>
             Roots with coefficient can be added with another coefficient that have the same roots. <br>
-            <strong>a<span class="root">c</span> + b<span class="root">c</span> = (a + b)<span class="root">c</span></strong>
+            <strong>a<span class="sroot">c</span> + b<span class="sroot">c</span> = (a + b)<span class="sroot">c</span></strong>
             <ul>
-                <li>3<span class="root">2</span> + 4<span class="root">2</span> = (3 + 4)<span class="root">2</span> = <strong>7<span class="root">2</span></strong></li>
-                <li><span class="root">5</span> + 3<span class="root">5</span> = (1 + 3)<span class="root">5</span> = <strong>4<span class="root">5</span></strong></li>
+                <li>3<span class="sroot">2</span> + 4<span class="sroot">2</span> = (3 + 4)<span class="sroot">2</span> = <strong>7<span class="sroot">2</span></strong></li>
+                <li><span class="sroot">5</span> + 3<span class="sroot">5</span> = (1 + 3)<span class="sroot">5</span> = <strong>4<span class="sroot">5</span></strong></li>
             </ul>
             <h2 id="root-operations--subtraction">Subtraction</h2>
             Roots with coefficient can be subtracted with another coefficient that have the same roots. <br>
-            <strong>a<span class="root">c</span> - b<span class="root">c</span> = (a - b)<span class="root">c</span></strong>
+            <strong>a<span class="sroot">c</span> - b<span class="sroot">c</span> = (a - b)<span class="sroot">c</span></strong>
             <ul>
-                <li>7<span class="root">3</span> - 4<span class="root">3</span> = (7 - 4)<span class="root">3</span> = <strong>3<span class="root">2</span></strong></li>
-                <li>10<span class="root">6</span> - 5<span class="root">6</span> = (10 - 5)<span class="root">6</span> = <strong>5<span class="root">6</span></strong></li>
+                <li>7<span class="sroot">3</span> - 4<span class="sroot">3</span> = (7 - 4)<span class="sroot">3</span> = <strong>3<span class="sroot">2</span></strong></li>
+                <li>10<span class="sroot">6</span> - 5<span class="sroot">6</span> = (10 - 5)<span class="sroot">6</span> = <strong>5<span class="sroot">6</span></strong></li>
             </ul>
             <h2 id="root-operations--multiplication">Multiplication</h2>
             Roots can be multiplied with any other roots. If the root is the same as the other multiplied root, the root can be deleted (if you want to be faster). <br>
-            <strong>a<span class="root">c</span> &times; b<span class="root">d</span> = (a &times; b)<span class="root">c &times; d</span></strong>
+            <strong>a<span class="sroot">c</span> &times; b<span class="sroot">d</span> = (a &times; b)<span class="sroot">c &times; d</span></strong>
             <ul>
-                <li><span class="root">2</span> &times; <span class="root">5</span> = <strong><span class="root">10</span></strong></li>
-                <li>3<span class="root">2</span> &times; 4<span class="root">3</span> = (3 &times; 4)<span class="root">2 &times; 3</span> = <strong>12<span class="root">6</span></strong></li>
-                <li>2<span class="root">5</span> &times; 3<span class="root">5</span> = (2 &times; 3)(5) = 6(5) = <strong>30</strong></li>
+                <li><span class="sroot">2</span> &times; <span class="sroot">5</span> = <strong><span class="sroot">10</span></strong></li>
+                <li>3<span class="sroot">2</span> &times; 4<span class="sroot">3</span> = (3 &times; 4)<span class="sroot">2 &times; 3</span> = <strong>12<span class="sroot">6</span></strong></li>
+                <li>2<span class="sroot">5</span> &times; 3<span class="sroot">5</span> = (2 &times; 3)(5) = 6(5) = <strong>30</strong></li>
             </ul>
             <h2 id="root-operations--division">Division</h2>
             Roots can be divided with any other roots. <br>
-            <strong>a<span class="root">c</span> &divide; b<span class="root">d</span> = (a &divide; b)<span class="root">c &divide; d</span></strong>
+            <strong>a<span class="sroot">c</span> &divide; b<span class="sroot">d</span> = (a &divide; b)<span class="sroot">c &divide; d</span></strong>
             <ul>
                 <li>
-                    8<span class="root">6</span> &divide; 4<span class="root">3</span> = (8 &divide; 4)<span class="root">6 &divide; 3</span> = <strong>2<span class="root">2</span></strong>
+                    8<span class="sroot">6</span> &divide; 4<span class="sroot">3</span> = (8 &divide; 4)<span class="sroot">6 &divide; 3</span> = <strong>2<span class="sroot">2</span></strong>
                 </li>
             </ul>
         </section>
diff --git a/lessons/matematika/pangkat-akar/latihan.html b/lessons/matematika/pangkat-akar/latihan.html
index a019254..701a456 100644
--- a/lessons/matematika/pangkat-akar/latihan.html
+++ b/lessons/matematika/pangkat-akar/latihan.html
@@ -63,13 +63,13 @@
                 <h2 id="questions--pangkat">Pangkat</h1>
                 <li style="margin-top: 10px;">8p<sup>2</sup>q &times; 2pq<sup>3</sup></li>
                 <li style="margin-top: 10px;">64<sup><span class="frac"><sup>1</sup><span>&frasl;</span><sub>2</sub></span></sup> + 81<sup><span class="frac"><sup>1</sup><span>&frasl;</span><sub>3</sub></span></sup></li>
-                <li style="margin-top: 10px;">2<span class="root">5</span> + 3<span class="root">20</span> - 4<span class="root">5</span></li>
+                <li style="margin-top: 10px;">2<span class="sroot">5</span> + 3<span class="sroot">20</span> - 4<span class="sroot">5</span></li>
 
                 <h2 id="questions--rasional">Merasionalkan Akar</h2>
-                <li style="margin-top: 10px;"><span class="frac"><sup>4</sup><span>&frasl;</span><sub><span class="root">5</span></sub></span></li>
-                <li style="margin-top: 10px;"><span class="frac"><sup>3<span class="root">5</span></sup><span>&frasl;</span><sub>2<span class="root">3</span></sup></sub></span></li>
-                <li style="margin-top: 10px;"><span class="frac"><sup>5</sup><span>&frasl;</span><sub><span class="root">3</span> - <span class="root">2</span></sub></span></li>
-                <li style="margin-top: 10px;"><span class="frac"><sup><span class="root">5</span> - <span class="root">7</span></sup><span>&frasl;</span><sub><span class="root">5</span> - <span class="root">2</span></sub></span></li>
+                <li style="margin-top: 10px;"><span class="frac"><sup>4</sup><span>&frasl;</span><sub><span class="sroot">5</span></sub></span></li>
+                <li style="margin-top: 10px;"><span class="frac"><sup>3<span class="sroot">5</span></sup><span>&frasl;</span><sub>2<span class="sroot">3</span></sup></sub></span></li>
+                <li style="margin-top: 10px;"><span class="frac"><sup>5</sup><span>&frasl;</span><sub><span class="sroot">3</span> - <span class="sroot">2</span></sub></span></li>
+                <li style="margin-top: 10px;"><span class="frac"><sup><span class="sroot">5</span> - <span class="sroot">7</span></sup><span>&frasl;</span><sub><span class="sroot">5</span> - <span class="sroot">2</span></sub></span></li>
 
                 <h2 id="question--operasi-pangkat">Operasi Pangkat</h2>
                 <li style="margin-top: 10px;">(8p<sup>2</sup>3)<sup>3</sup> &divide; 2pq</li>
@@ -84,40 +84,40 @@
                 <li style="margin-top: 10px;">16p<sup>3</sup>q<sup>4</sup></li>
                 <li style="margin-top: 10px;">
                     64<sup><span class="frac"><sup>1</sup><span>&frasl;</span><sub>2</sub></span></sup> + 81<sup><span class="frac"><sup>1</sup><span>&frasl;</span><sub>3</sub></span></sup><br>
-                    = <span class="root">64</span> + <sup>3</sup><span class="root">81</span><br>
-                    = 8 + <sup>3</sup><span class="root">81</span>
+                    = <span class="sroot">64</span> + <sup>3</sup><span class="sroot">81</span><br>
+                    = 8 + <sup>3</sup><span class="sroot">81</span>
                 </li>
                 <li style="margin-top: 10px;">
-                    2<span class="root">5</span> + 3<span class="root">20</span> - 4<span class="root">5</span><br>
-                    = 6<span class="root">5</span> + 3<span class="root">20</span><br>
-                    = 6<span class="root">5</span> + 3<span class="root">4 &times; 5</span><br>
-                    = 6<span class="root">5</span> + 3<span class="root">2<sup>2</sup> &times; 5</span><br>
-                    = 6<span class="root">5</span> + 3 &times; 2<span class="root">5</span><br>
-                    = 6<span class="root">5</span> + 6<span class="root">5</span><br>
-                    = <strong>12<span class="root">5</span></strong><br>
+                    2<span class="sroot">5</span> + 3<span class="sroot">20</span> - 4<span class="sroot">5</span><br>
+                    = 6<span class="sroot">5</span> + 3<span class="sroot">20</span><br>
+                    = 6<span class="sroot">5</span> + 3<span class="sroot">4 &times; 5</span><br>
+                    = 6<span class="sroot">5</span> + 3<span class="sroot">2<sup>2</sup> &times; 5</span><br>
+                    = 6<span class="sroot">5</span> + 3 &times; 2<span class="sroot">5</span><br>
+                    = 6<span class="sroot">5</span> + 6<span class="sroot">5</span><br>
+                    = <strong>12<span class="sroot">5</span></strong><br>
                 </li>
                 <li style="margin-top: 10px;">
-                    <span class="frac"><sup>4</sup><span>&frasl;</span><sub><span class="root">5</span></sub></span><br>
-                    = <span class="frac"><sup>4</sup><span>&frasl;</span><sub><span class="root">5</span></sub></span> &times; <span class="frac"><sup><span class="root">5</span></sup><span>&frasl;</span><sub><span class="root">5</span></sub></span> = <strong><span class="frac"><sup>4<span class="root">5</span></sup><span>&frasl;</span><sub>5</sub></span></strong>
+                    <span class="frac"><sup>4</sup><span>&frasl;</span><sub><span class="sroot">5</span></sub></span><br>
+                    = <span class="frac"><sup>4</sup><span>&frasl;</span><sub><span class="sroot">5</span></sub></span> &times; <span class="frac"><sup><span class="sroot">5</span></sup><span>&frasl;</span><sub><span class="sroot">5</span></sub></span> = <strong><span class="frac"><sup>4<span class="sroot">5</span></sup><span>&frasl;</span><sub>5</sub></span></strong>
                 </li>
                 <li style="margin-top: 10px;">
-                    <span class="frac"><sup>3<span class="root">5</span></sup><span>&frasl;</span><sub>2<span class="root">3</span></sup></sub></span><br>
-                    = <span class="frac"><sup>3<span class="root">5</span></sup><span>&frasl;</span><sub>2<span class="root">3</span></sup></sub></span> &times; <span class="frac"><sup><span class="root">3</span></sup><span>&frasl;</span><sub><span class="root">3</span></sup></sub></span><br>
-                    = <span class="frac"><sup><span style="text-decoration: line-through;">3</span><span class="root">15</span></sup><span>&frasl;</span><sub>2 &times; <span style="text-decoration: line-through;">3</span></sup></sub></span><br>
-                    = <strong><span class="frac"><sup><span class="root">15</span></sup><span>&frasl;</span><sub>2</sup></sub></span></strong>
+                    <span class="frac"><sup>3<span class="sroot">5</span></sup><span>&frasl;</span><sub>2<span class="sroot">3</span></sup></sub></span><br>
+                    = <span class="frac"><sup>3<span class="sroot">5</span></sup><span>&frasl;</span><sub>2<span class="sroot">3</span></sup></sub></span> &times; <span class="frac"><sup><span class="sroot">3</span></sup><span>&frasl;</span><sub><span class="sroot">3</span></sup></sub></span><br>
+                    = <span class="frac"><sup><span style="text-decoration: line-through;">3</span><span class="sroot">15</span></sup><span>&frasl;</span><sub>2 &times; <span style="text-decoration: line-through;">3</span></sup></sub></span><br>
+                    = <strong><span class="frac"><sup><span class="sroot">15</span></sup><span>&frasl;</span><sub>2</sup></sub></span></strong>
                 </li>
                 <li style="margin-top: 10px;">
-                    <span class="frac"><sup>5</sup><span>&frasl;</span><sub><span class="root">3</span> - <span class="root">2</span></sub></span><br>
-                    = <span class="frac"><sup>5</sup><span>&frasl;</span><sub><span class="root">3</span> - <span class="root">2</span></sub></span> &times; <span class="frac"><sup><span class="root">3</span> + <span class="root">2</span></sup><span>&frasl;</span><sub><span class="root">3</span> + <span class="root">2</span></sub></span><br>
-                    = <span class="frac"><sup>5(<span class="root">3</span> + <span class="root">2</span>)</sup><span>&frasl;</span><sub>(<span class="root">3</span>)<sup>2</sup> - (<span class="root">2</span>)<sup>2</sup></sub></span><br>
-                    = <span class="frac"><sup>5(<span class="root">3</span> + <span class="root">2</span>)</sup><span>&frasl;</span><sub>3 - 2</sub></span> = <span class="frac"><sup>5(<span class="root">3</span> + <span class="root">2</span>)</sup><span>&frasl;</span><sub>1</sub></span><br>
-                    = <strong>5(<span class="root">3</span> + <span class="root">2</span>)</strong>
+                    <span class="frac"><sup>5</sup><span>&frasl;</span><sub><span class="sroot">3</span> - <span class="sroot">2</span></sub></span><br>
+                    = <span class="frac"><sup>5</sup><span>&frasl;</span><sub><span class="sroot">3</span> - <span class="sroot">2</span></sub></span> &times; <span class="frac"><sup><span class="sroot">3</span> + <span class="sroot">2</span></sup><span>&frasl;</span><sub><span class="sroot">3</span> + <span class="sroot">2</span></sub></span><br>
+                    = <span class="frac"><sup>5(<span class="sroot">3</span> + <span class="sroot">2</span>)</sup><span>&frasl;</span><sub>(<span class="sroot">3</span>)<sup>2</sup> - (<span class="sroot">2</span>)<sup>2</sup></sub></span><br>
+                    = <span class="frac"><sup>5(<span class="sroot">3</span> + <span class="sroot">2</span>)</sup><span>&frasl;</span><sub>3 - 2</sub></span> = <span class="frac"><sup>5(<span class="sroot">3</span> + <span class="sroot">2</span>)</sup><span>&frasl;</span><sub>1</sub></span><br>
+                    = <strong>5(<span class="sroot">3</span> + <span class="sroot">2</span>)</strong>
                 </li>
                 <li style="margin-top: 10px;">
-                    <span class="frac"><sup><span class="root">5</span> - <span class="root">7</span></sup><span>&frasl;</span><sub><span class="root">5</span> - <span class="root">2</span></sub></span><br>
-                    = <span class="frac"><sup><span class="root">5</span> - <span class="root">7</span></sup><span>&frasl;</span><sub><span class="root">5</span> - <span class="root">2</span></sub></span> &times; <span class="frac"><sup><span class="root">5</span> + <span class="root">2</span></sup><span>&frasl;</span><sub><span class="root">5</span> + <span class="root">2</span></sub></span><br>
-                    = <span class="frac"><sup>(<span class="root">5</span> - <span class="root">7</span>) &times; (<span class="root">5</span> + <span class="root">2</span>)</sup><span>&frasl;</span><sub>(<span class="root">5</span>)<sup>2</sup> - (<span class="root">2</span>)<sup>2</sup></sub></span><br>
-                    = <span class="frac"><sup>5 + <span class="root">10</span> - <span class="root">35</span> - <span class="root">14</span></sup><span>&frasl;</span><sub>5 - 2</sub></span> = <strong><span class="frac"><sup>5 + <span class="root">10</span> - <span class="root">35</span> - <span class="root">14</span></sup><span>&frasl;</span><sub>3</sub></span></strong>
+                    <span class="frac"><sup><span class="sroot">5</span> - <span class="sroot">7</span></sup><span>&frasl;</span><sub><span class="sroot">5</span> - <span class="sroot">2</span></sub></span><br>
+                    = <span class="frac"><sup><span class="sroot">5</span> - <span class="sroot">7</span></sup><span>&frasl;</span><sub><span class="sroot">5</span> - <span class="sroot">2</span></sub></span> &times; <span class="frac"><sup><span class="sroot">5</span> + <span class="sroot">2</span></sup><span>&frasl;</span><sub><span class="sroot">5</span> + <span class="sroot">2</span></sub></span><br>
+                    = <span class="frac"><sup>(<span class="sroot">5</span> - <span class="sroot">7</span>) &times; (<span class="sroot">5</span> + <span class="sroot">2</span>)</sup><span>&frasl;</span><sub>(<span class="sroot">5</span>)<sup>2</sup> - (<span class="sroot">2</span>)<sup>2</sup></sub></span><br>
+                    = <span class="frac"><sup>5 + <span class="sroot">10</span> - <span class="sroot">35</span> - <span class="sroot">14</span></sup><span>&frasl;</span><sub>5 - 2</sub></span> = <strong><span class="frac"><sup>5 + <span class="sroot">10</span> - <span class="sroot">35</span> - <span class="sroot">14</span></sup><span>&frasl;</span><sub>3</sub></span></strong>
                 </li>
                 <li style="margin-top: 10px;">
                     (8p<sup>2</sup>3)<sup>3</sup> &divide; 2pq <br>
diff --git a/lessons/matematika/pangkat-akar/pangkat.html b/lessons/matematika/pangkat-akar/pangkat.html
index 4061c82..7c7ccce 100644
--- a/lessons/matematika/pangkat-akar/pangkat.html
+++ b/lessons/matematika/pangkat-akar/pangkat.html
@@ -103,15 +103,15 @@
             <h1 id="fractional-exponent">Fractional Exponent</h1>
             <img src="/assets/images/math/fractional_exponent.svg" alt="">
             <p>x&nbsp;<sup><span class="frac"><sup>y</sup><span>&frasl;</span><sub>z</sub></span></sup> =
-                <sup>z</sup><span><span class="root">x</span><sup style="font-size: small;">y</sup><span></span></span></p>
+                <sup>z</sup><span><span class="sroot">x</span><sup style="font-size: small;">y</sup><span></span></span></p>
             <h2 id="fractional-exponent--examples">Examples</h2>
             <ul>
                 <li>5&nbsp;<sup><span class="frac"><sup>1</sup><span>&frasl;</span><sub>2</sub></span></sup> =
-                    <sup>2</sup><span><span class="root">5</span></span></li>
+                    <sup>2</sup><span><span class="sroot">5</span></span></li>
                 <li>7&nbsp;<sup><span class="frac"><sup>2</sup><span>&frasl;</span><sub>3</sub></span></sup> =
-                    <sup>3</sup><span><span class="root">7<sup>2</sup></span></span></li>
+                    <sup>3</sup><span><span class="sroot">7<sup>2</sup></span></span></li>
             </ul>
-            <p><strong>Small Note:</strong> 2</sup><span class="root">x</span> or <span class="root">x</span> menans square root. The 2 before root should be removed. The 2 is only present for easier purposes.<br>3</sup><span><span class="root">x</span> means cubic root.</p>
+            <p><strong>Small Note:</strong> 2</sup><span class="sroot">x</span> or <span class="sroot">x</span> menans square root. The 2 before root should be removed. The 2 is only present for easier purposes.<br>3</sup><span><span class="sroot">x</span> means cubic root.</p>
 
             <h1 id="exponential-equation">Exponential Equation</h1>
             <ol>