$14^2$
$tan2x-1=0$
$-7z-4+2+3z$
$4x+5x-2x+x$
$3=\frac{1}{\cos\left(x\right)}$
$\frac{d}{dx}\left(2cos\left(x+2y\right)+sin\left(yz\right)-1\right)=0$
$\cot\left(a\right)+\frac{2}{\sec\left(x\right)}=0$
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