$\frac{\tan\theta}{1-\cos^2\theta}$
$325^0$
$\int\left(x\left(1+x^2\right)^{-1}\right)dx$
$y=4\left[x-\left(5-x\right)\right]-7\left(x+1\right)$
$5m\left(m-2y+3x-4\right)$
$a+4b-5a-a$
$\frac{cosx+sinx}{sinx}=cot\left(x\right)+1$
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