$znm+cmn$
$tanx\left(1+cos2x\right)$
$\left(3y-2\right)^2+\left(3x-2\right)^2+\left(3z-2\right)^2;\:x=2,\:y=-1,\:z=1$
$\left(\sqrt[2]{x}+\frac{1}{2}\right)^2$
$\sqrt{x^{2}+y^{2}}=e\arctag^{\frac{7}{2}}$
$18+x=27$
$2\cdot\left(3x^2-5\right)$
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