$\int_{-2}^2\pi\left(4-x^2\right)^2dx$
$\frac{1+tan^2x}{sec^2x\left(sin\:x\:+cos\:x\right)}$
$\frac{d}{dx}\left(2y^3+4xy+x^2\right)=7$
$+ab-8ab$
$7x>10$
$\frac{1}{3x}+\frac{5}{2x}$
$x^2+2x^2-2x+1$
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