$\int\frac{1}{\sqrt{b^2x^2-a^2}}dx$
$5^{-4}\cdot5^0\cdot5^7$
$5\cos^2x=3+3\sin\left(x\right)$
$\left(1-\sin^2x\right)^2\sec^2x=1$
$\frac{x}{4}=20$
$x^2+2\left(x\right)\left(3\right)+3$
$\lim_{x\to\infty}\left(\sqrt{4x^2+1}-\sqrt{4x^2+x}\right)$
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