$\int_{-2}^4\frac{1}{3e^{-5x}}dx$

$log11\left(9\right)+log11\left(4\right)-log11\left(36\right)$

$\int\frac{u-1}{u^2+2u+1}du$

$63-21\left(-75\right)$

$\frac{d}{dx}4+6xy=5x-12y$

$16\left(2w+4\right)$

$\int_{-2\cdot\pi}^{-\pi}\left(1\cdot\sin\left(n\cdot x\right)\right)dx$