$2\tan\left(x\right)\cos\left(x\right)^2=\sin\left(2x\right)$
$\left(\frac{\left(-1\right)^n}{n}\right)\left(\frac{\pi}{2}\right)^n$
$\sqrt{3}^{\frac{\sin\:\left(2x\right)}{\cos\:\left(x\right)}}$
$+4+\left(+5-4+\left(-3-2+\left(+2+3+4\right)-5-2\right)+2\right)$
$\left(4m+7\right)^2$
$\frac{x^4}{64-x^3}$
$\frac{\sin^2\left(x\right)}{-\sin\left(x\right)}$
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