$\sec^2x-1\left(x\right)^2=\frac{1}{\sin\left(x\right)^2\cdot\cos\left(x\right)^2}$
$\csc\theta\:\:\left(sin\theta\:+cos\theta\:\right)$
$\frac{\sin^{2}t}{\cos t}=\sec t-\cos t$
$\int3x^2\cdot tanh\left(x^3\right)dx$
$3\:i\:x\:+\:5\:i\:\:-\:3\:\:=\:x\:$
$solve\:x^2-36=0$
$145^3$
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