$\frac{\tan\left(x\right)+1}{\cot\left(x\right)+1}+\cot\left(x\right)=2\csc\left(2x\right)$
$\left(x-11\right)\left(x+4\right)$
$3x\:+\:4\:-\:2x\:+\:6\:-\:2$
$\int e^{-3x}sen5dx$
$-\:3\:+\:\left(-4\:-\:2\right)\:+\:\left[-\:7\:-\:\left(4\:-\:7\right)\:+\:3\right]$
$\int_0^{\frac{\pi}{4}}tan^5\left(x\right)dx$
$2x^3+128$
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