$\frac{54sin\left(50\right)}{sin\left(34\right)}$
$\left(\frac{\frac{1}{2}xy^2z}{\frac{3}{4}a^4m^2z^{10}}\right)$
$1-cos^2x=3cos^2x$
$2ab-8ab+\frac{5}{3}ba+3a^2+5b^2$
$2+\frac{x+3}{4}$
$3x^2+6x-5$
$\frac{dy}{dx}=\frac{4}{\left(x^2+4\right)y}$
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