$\tan\left(8\right)+\cot\left(8\right)$
$-15+6x-19-20x$
$1+\left(\sin\left(x\right)-\cos\left(x\right)\right)\left(\sin\left(x\right)+\cos\left(x\right)\right)=1-\cos\left(2x\right)$
$\log_{.25}\left(2x+1\right)=-2$
$\int\left(\sin^2\left(\frac{x}{2}\right)\cos\left(\frac{x}{2}\right)\right)dx$
$\lim_{n\to5}\left(\frac{\ln\left(n+1\right)}{n}\right)$
$-345+456-676+40$
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