$\int\csc^3\left(\frac{3x}{4}\right)dx$
$\left(\cos^2a-1\right)\left(\tan^2a+1\right)=1.\sec^2a$
$8x+12=5x\:+3$
$\left(m^2+12+36\right)-\left(m^2-36\right)$
$\frac{\csc\left(x\right)\cot\left(x\right)}{\sin\left(x\right)}\sin\left(x\right)$
$-x^2+11x+30$
$n^2-9n+20.25$
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