$\frac{e\left(x\right)-\left(\left(x+1\right)\cos\:\left(kx\right)\right)}{\left(x\right)\sin\left(kx\right)}$

$\left(a^5-b^7\right)^3$

$x2-8x+34=0$

$\int\frac{\left(1\right)}{\left(x^2-x+1\right)}\:dx$

$3^2.6^6$

$e^{\left(6x+1\right)}\cdot\left(2x+3\right)$

$\left|-11+34\right|$