$\int\cos^2\left(\frac{7}{2}x\right)dx$
$a^2bc+ab^2c+abc$
$\left(3^{2+8b^3}\right)^2$
$\frac{a\left(b^{2}-c^{3}\right)-1}{ab^{2}c}$
$\sin\left(70\right)\cos\left(20\right)-\cos\left(50\right)\cos\left(10\right)$
$\left(4b-5c\right)^3$
$\left(x-16\right)\left(x-4\right)$
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