$4\frac{dy}{dx}=\frac{e^ysin^2x}{ysecx}$

$\left(-7\right)+\left(-8\right)-\left(-4\right)$

$3x<4-x$

$log\left(x^2+3x+12\right)=2$

$\int_0^{\pi}\left(\frac{\left(1-tan^2x\right)}{sec^2x}\right)dx$

$e^{\left(-2\left(\ln\left(\sin\left(x\right)\right)\right)\right)}$

$\frac{\frac{2}{x^2}}{\frac{10}{x^5}}$