$-183-\left(9\right)-1$
$778+-158$
$\left(3\frac{1}{2}\right)^3\left[\right]^{-2}$
$-20+\left(-1\right)-\left(-3\right)$
$\frac{sin\left(5x\right)}{sinx}-\frac{\cos\left(5x\right)}{cosx}=\frac{2sin4x}{sin2x}$
$\frac{\left(6x^5z^3\right)}{4x^4z^2}$
$\lim_{x\to\frac{\pi}{9}}\left(\frac{sinx}{\frac{\pi}{9}-x}\right)$
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