$15-2^2-1^3\cdot3$
$\csc x\cdot\left(1-\csc\left(x\right)\right)=\frac{\sin\left(x\right)-1}{\sin\left(x\right)^2}$
$\frac{1+\tan\left(x\right)}{\sec\left(x\right)}$
$cbvc$
$\log\left(x\right)=-56$
$81w^2-18w+1$
$-2q^2+28q=94$
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