$\left(b^2+1\right)^3$

$7x+6>5x-12$

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

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

$\int x\:e^{3x+7}dx$

$\int\left(\frac{1}{cos\left(x\right)+\frac{cos\left(x\right)}{sin\left(x\right)}}\right)dx$

$29-\left(-9\right)$