$\int\tan^4\left(x\right)\sin^2\left(x\right)dx$
$-20+\left(-40\right)+120+120$
$-389\cdot37$
$c^2+8c+16$
$-3\csc x=2\sqrt{3}$
$\int x^2sin\left(0.5x\right)dx$
$25x^2-25z^2$
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