$\left(12^2\right)^{\frac{1}{4}}$
$\cos\left(3x\right)-\cos^3\left(x\right)-\frac{3}{2}\sin\left(x\right)\sin\left(2x\right)$
$2\sin^{2}t+3\sin t=2$
$a\left(x\right)=-2x^2+x+3$
$x^3-9$
$\lim_{x\to92}\left(csc\:x\right)$
$x^2+y^2\:\left(x\right)=xy\left(x\right)\:\frac{dx}{d}\:y\left(x\right)$
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