$-18-3s=15$

$\lim_{n\to\infty}\left(\frac{n\left(n+1\right)}{\left(n+2\right)\left(n+3\right)}\right)$

$\left(3+g^3\right)\left(3-g^3\right)$

$\int\left(\sin^5\left(x^2\right)\right)\left(x\cos\left(x^2\right)\right)dx$

$\int_{-3}^4\left(x\cdot\sin\left(x\right)^2\right)dx$

$10^x=1000$

$1\:-\:\frac{sen^2}{csc}$