$-3\sin\left(3a\right)=0$
$\left(5\right)+\left(3\right)+\left(4\right)+\left(4\right)$
$c\sqrt[3]{b}\sqrt[3]{a}\cdot\sqrt[3]{b^2}\sqrt[3]{a}$
$16x^6y^2+z^2-8x^3yz$
$4n^4-12n^2+9$
$tan\left(\frac{5\cdot\pi}{4}+x\right)$
$\arctan\left(2x-3\right)=\frac{\pi}{4}$
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