$5\sin^2\left(x\right)+3\csc\left(x\right)\tan\left(x\right)+5\cos^2\left(x\right)$
$\frac{sin\theta\:\:+sin^2\theta\:\:}{cos\theta\:+cos\theta\:\:sin\theta\:}=tan\theta\:$
$14acd-7cd+21cd^2d^2$
$x^2-x+20$
$-\frac{y}{4+y^2}dy=\frac{x}{1+x^2}dx$
$\left[-22+\left(2x\left(-6\right)-5\right)-12\right]-6$
$\ln e^{3x}=15$
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