$\frac{27m^3-125n^3}{3m^3-5n^3}$
$\int\sqrt{x-30}dx$
$2\csc\left(45\right)^2=\frac{1}{\left(1+\cos\left(a\right)\right)}+\frac{1}{\left(1-\cos\left(a\right)\right)}$
$\int_0^{\infty}\left(\sin\left(x\right)\cdot cos\left(wx\right)\right)dx$
$4^{-3+4-4+5}$
$12^{\log_{12}\left(42\right)}$
$-\frac{sin\left(x\right)}{cos\left(x\right)-1}=cot\left(x\right)+csc\left(x\right)$
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