$\int_{-7}^{-\frac{77}{12}}\frac{x+2}{x\cdot\left(x+1\right)^2}dx$
$4xy-3y^2-2yz^3$
$\frac{j^{-1}\:.\:j^0\:.\:j^{-8}}{j^{-1}}$
$\int\frac{\tan^32x}{\sec^32x}dx$
$\left(\sec^2x-1\right)\cos x=\tan^2x\cos x$
$-6:6$
$4c-20cd+25d^2$
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