$11x^2-11b^2$

$\int\frac{24}{\left(6x-5\right)^5}dx$

$2^8\cdot5^2$

$\int\:\left(\frac{3}{x+2}-\frac{4}{x+5}\right)dx$

$\sin\left(a\right)\left(\frac{\sin\left(x\right)}{\cos\left(x\right)}+\frac{\cos\left(x\right)}{\sin\left(x\right)}\right)$

$\frac{\frac{1}{\sqrt{x+1}}}{x}-1$

$\csc^2\left(x\right)-\csc\left(x\right)\cot\left(x\right)$