$2-\frac{y}{x}$

$\int\frac{3x+5}{x^2+6x+10}dx$

$\frac{1}{sin\left(x\right)cos\left(x\right)}-cot\left(x\right)\:\:\:\:cot$

$\frac{d^2}{dx^2}\left(x^{-6}\right)$

$\int_0^{ln\left(2\right)}\sqrt{e^x-1}dx$

$\left(-78\right)-\left(-125\right)$

$\left(+1\right)\left(-7\right)\left(-5\right)\left(+2\right)\left(-4\right)\left(-9\right)$