$\sin^4\left(z\right)-\cos^4\left(z\right)$
$4x+2-2x+3$
$y=-20x^{-5}$
$0,895^{2.89}$
$\frac{m^3+125}{m+5}$
$\int rcosr\:dr$
$\left(x^{-3}y^2\right)^3$
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