$cosa=\frac{1}{2}$
$94<\frac{2m}{3}+36$
$m^2+50+625$
$\cos\left(a\right)^4-\sin\left(a\right)^4=\cos\left(a\right)^2-\sin\left(a\right)^2$
$25x^{14}-49y^6$
$\log_b\left(x^9y^4z\right)$
$x^2-17x+52$
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