$9x^2-30x+5$
$\frac{1}{1-cosx}=csc^2x\left(1+cosx\right)$
$3y^3dx=6x^2dy$
$\frac{1-sec^2x}{1+csc^2x}$
$81x^4-1$
$-\left(1.5\right)^4$
$\int\frac{1}{\sqrt{9x^2-36x+37}}dx$
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