$\left(\frac{1}{\sin\left(x\right)}\right)-\left(\frac{1}{\cos x}\right)=\left(\frac{\cos x-\sin x}{\sin x\cos x}\right)$
$3.77\cdot0.25$
$\int x^7csc\left(x^8-2\right)^2dx$
$\left(x+2\right)\left(x^2+2xy+y^2\right)$
$8.848-11.034$
$y''+64y=0$
$\left(-3\right)\cdot\:\left(+3\right)\cdot\:\left(+3\right)\cdot\:\left(-3\right)$
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