$\int_{\frac{\pi}{2}}^{\pi}\left(\sin\left(nx\right)\right)dx$

$\lim_{x\to0}\left(\frac{4e^t-4}{t^3}\right)$

$\left(\frac{x^{\frac{1}{2}}}{x^{\frac{1}{5}}}\right)^{\frac{1}{4}}$

$\int5\cos\left(5x\right)-6\sin\left(6x\right)dx$

$274+x\ge90$

$\int\frac{\left(3-5x\right)}{\left(x^3-6x^2\right)}dx$

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