$\int cosxin\left(senx\right)dx$
$8r+38r$
$\frac{1}{4}-\left(\cos^2\frac{\pi}{12}-\sin^2\frac{\pi}{12}\right)$
$\int\sin\left(\frac{1}{3}\right)x\:dx$
$\left(2x^5y\right)\left(2x^2\right)\left(-9x\right)$
$x-4>-3$
$\int\frac{1}{\sqrt{x}-x}dx$
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