$\int\left(16+x^2\right)^{-4}dx$
$1,2x^2-0,3x+1$
$\left(6\:cos\:x\:-\:3\:sin\:x\right)^2+\left(3\:cos\:x\:+6\:sin\:x\right)^2=45$
$\frac{10^{-2}}{5^{-2}}$
$prove\:2sin\left(\theta\:\right)cos\left(\theta\:\right)=-1$
$6x-x^2+9$
$2\cdot\left|3\cdot2\right|$
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