$5x-1<6$

$\left(x^4+y^6\right)^5\:$

$3-2\cdot\left(-2\right)+\left(-15\right)\cdot\left(-3\right)$

$\frac{\cos\left(x\right)+\tan\left(x\right)}{\cos\left(x\right)\cdot\tan\left(x\right)}=\cot\left(x\right)$

$x2-2x+5x-10$

$\tan^2\frac{x}{2}=\left(\frac{\sin\left(x\right)}{1+\cos\left(x\right)}\right)^2$

$\left(x^2-y^2\right)dy=\left(xy\right)dx$