$3csc^2\left(\frac{x}{2}\right)-5csc\left(\frac{x}{2}\right)-2=0$
$\int6.dt$
$\left(b+3\right)\left(b+1\right)-4\left(b+1\right)$
$\int sen^3\left(2x\right)cos^5\left(2x\right)dx$
$\frac{5^{27}}{5^{11}}$
$7x^2+9x-10$
$4x^2+2xy+\frac{y^2}{4}$
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