$\frac{1}{\cos\left(x\right)+\sin\left(x\right)\cos\left(x\right)}$
$cos3x\cdot cos2x-\frac{3}{2}\cdot cos2x+8\cdot cos3x$
$\sin\left(x\right)+\sqrt{2}=-\sin\left(x\right)$
$\int ( 3 y ^ { 2 } + 2 y + 5 ) ^ { 3 } ( 6 y + 2 ) d y$
$5x+6<10x-10$
$3x+9>54$
$\left(x-9\right)\left(x+12\right)$
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