$-12-3-7+4-2+1+5$
$12y^2-25y^4$
$\frac{dy}{dx}=y^2e^{-x}$
$\sqrt[2]{x},\:x=4$
$\int_0^2\frac{3}{x^2+2x-2}dx$
$1-\sin^2x=\frac{1}{\csc^2\left(x\right)}$
$\sin\left(3x\right)=2\sin^2\left(3x\right)$
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