$\int\left(e^x\cdot\cos\left(e^x\right)\right)$

$\left(\csc\left(b\right)+\cot\left(b\right)\right)^2$

$\ln\left(\frac{4x^4sin\left(-7x\right)}{3x-3}\right)$

$\sqrt{9\cdot25}$

$\tan\left(65\right)=\frac{x}{43}$

$\frac{dy}{dx}=2\cdot\frac{y}{x},y\left(1\right)=1$

$\sqrt{x^3+2x^2}+3x\sqrt{x+2}-5\sqrt{x^2\left(x+2\right)}$