$\int\left(\left(3+x^4\right)^8\left(4x^3\right)\right)dx$

$5y<20$

$\tan\left(\theta\right)+\cot\left(\theta\right)=\frac{1}{\sec\left(\theta\right)\:\cos\left(\theta\right)}$

$-31\left(-86\right)$

$3x^2y^2\sin\left(x\right)dx-\sin\left(x\right)dy$

$\int\left(2x-1\right)\left(3x-2\right)^3dx$

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