$\left(1+\cos\left(2x\right)\right)\cdot\tan\left(x\right)=2\sin\left(2x\right)$
$m+3\cdot m+3$
$\frac{x}{-8}+23$
$\left(\frac{\left(5\:a^2\right)-\left(1n\right)}{\left(7\right)\left(8\right)}\right)^2$
$\frac{x^5-x^4+x^2-2}{x-2}$
$\left(-120\right)+\left(35\right)+\left(180\right)+\left(32\right)$
$\frac{\sin\left(x\right)+0.22\cos\left(x\right)}{\cos\left(x\right)-0.22\sin\left(0\right)}$
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