$tanx\left(x\right)\cos\left(x\right)+\cot\left(x\right)\sin\left(x\right)=\sin\left(x\right)+\cos\left(x\right)$

$\com\sqrt{\frac{4a^{2}b^{2}}{16m^{4}}}$

$8\left(x-3\right)\left(x+3\right)$

$\frac{1+sen\left(x\right)}{-sen^2\left(x\right)-sen\left(x\right)}$

$\frac{dy}{dx}=\left(3x+2\right)\left(e^{-4x}\right)$

$\lim_{x\to\infty}\left(\frac{1}{x}-\frac{1}{x^2}\right)^x$

$-18x+9-23x$