$\left(\frac{1}{2}w+\frac{3}{5}r\right)^3$
$729\cdot16\cdot125$
$f\left(x\right)=\sqrt{\log\left(x+2\right)-1+2}$
$3654+08+315$
$\frac{1-2sen^2x}{sen\:3x-sen\:x}=\frac{1}{2}\csc\left(x\right)$
$-4\left(-2\right)+2\left(3\right)+3\left(-1\right)$
$\cos\left(\frac{7\pi}{12}\right)=\square$
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