$1-\sec\left(x\right)+\tan\left(x\right)$

$\left(x^2+1\right)\left(x\right)$

$\left(y+h\right)^2$

$5^{x-2}=125$

$4^9\:.\:4^{-2}$

$\frac{\sec\left(x\right)\tan\left(x\right)}{\csc\left(x\right)\tan\left(x\right)\sec\left(x\right)-1}$

$\frac{d}{dx}\left(y=x\:^3cos\left(e^{\sqrt{tan\left(3x\:\right)}}\right)\right)$