$\int\cos\left(2x\right)^{-1}2dx$

$\left(10+\left(-2\right)\right).\left(-2\left(\left(-8\right)+16\right)\right)$

$\sqrt{128x^5}$

$\ln\left(\frac{\sec\left(y\right)}{\sin\left(x+1\right)}\right)=c$

$\frac{x+2}{x-3}<1$

$9\sec\left(x\right)^2-5\tan\left(x\right)^2=5+4\sec\left(x\right)^2$

$\frac{\sin b+\cos b}{\sin b}$