$csc^2x\left(1+sin^2\right)=cot^2x$
$\int\frac{\left(x+2\right)}{\left(4-\left(x-2\right)^2\right)^{\frac{3}{2}}}dx$
$-4.2-\left(-2.9\right)$
$8^3+8^2$
$9-m^2$
$\frac{1}{z\left(z-3j\right)},\:j$
$\:\:\:\left(2f+g+h+i\right)^2$
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