$\sin\sqrt{20s^2t^9}$
$w2+2w-3$
$0,125\:x\:\left(-2\right)\:\left(-4\right)^3\left(4\right)^2\:+\:\frac{1}{16}\:\left(3\right)^3\:\left(-4\right)^2\:\left(4\right)$
$4x<8+2x$
$-4^{13}$
$\left(-7\right)+\left(-2+3\cdot\left(2+5-1\right)\right)$
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