$y^2+\frac{2y}{3}$
$120\frac{\pi}{180}$
$cos^2\left(x\right)=\frac{cot^2\left(x\right)}{1+cot^2\left(x\right)}$
$2x+y;\:x=7;\:y=10y$
$\left(\frac{4xy}{y^6}\right)^3$
$\ln\left(a^2-b^2\:w^2\:\right)$
$14x^2+9x=18$
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