$\int_{-\frac{\pi}{3}}^0\left(2sec^3x\right)dx$
$cos\left(sin^{-1}\left(\frac{4}{5}\right)+cos^{-1}\left(\frac{3}{5}\right)\right)$
$\frac{sin3x\:+\:2sin2x\:+\:sinx}{4sin^2\left(x\right)cos\left(x\right)}$
$40-\left(-40\right)$
$4,2-0,1839$
$81b^2-100c^2$
$\sqrt[8]{v^8}$
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