$\left(x-2\cdot y+z\right)^2$
$30y+24y$
$\sin^22x=1$
$28,49-4,64$
$\int\left(\left(x^4-16\right)^5x^3\right)dx$
$4^7x\:4^4$
$\tan\left(\cos^{-1}\left(\frac{4}{\sqrt{u^2+16}}\right)\right)$
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