$\cot^2\left(10\right)x\:\tan^2\left(10\right)+1=2$
$\left(x^1-3\right)\left(x^1-1\right)$
$8\left(-8-2\right)$
$\left(-7xy^2-x^2y\right)\left(x^2+y^2\right)$
$\lim_{x\to0}\left(1+\frac{5}{x}\right)^{7x}$
$\int_{-6}^3\left(-2x\right)dx$
$\left(4n^3-3n^2\right)^2$
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