Short exact sequence:

$\large 0 \to H \to G \to G/H \to 0$

and an integral

$\large \int \sqrt{x} dx$.

Each finite Abelian group is isomorphic to a direct sum of cyclic groups

$\large \Bbb Z_{m_1} \oplus \Bbb Z_{m_2} \oplus \dots \oplus \Bbb Z_{m_n}$

where $m_1|m_2|\dots | m_n$.

(One of my favorite results from group theory.)

**Thanks**to a gentle soul's responding at tex.stackexchange:

To get LaTeX to work on Blogger, go to Design, then to "edit HTML", then to "edit template". In the HTML file insert the following script right after where it says < head >:

```
<script type="text/javascript" src="http://cdn.mathjax.org/mathjax/latest/MathJax.js">
MathJax.Hub.Config({
extensions: ["tex2jax.js","TeX/AMSmath.js","TeX/AMSsymbols.js"],
jax: ["input/TeX", "output/HTML-CSS"],
tex2jax: {
inlineMath: [ ['$','$'], ["\\(","\\)"] ],
displayMath: [ ['$$','$$'], ["\\[","\\]"] ],
},
"HTML-CSS": { availableFonts: ["TeX"] }
});
</script>
```

` `

```
```

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