$x^2+4;\:x=1$
$\tan\left(x\right)\csc\left(2x\right)\cos\left(x\right)=1$
$\sqrt[4]{243a^{2}b^{6}c^{8}}$
$-25^2$
$\int_0^{\pi}\left(\frac{\left(1-tan^2x\right)}{sec^2x}\right)dx$
$\lim_{x\to3}\left(\frac{sin\left(2x\right)}{x}\right)$
$-3\left(x+4\right)\left(x-2\right)+2\left(3x-1\right)$
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