$t\left(t\right)=3-\frac{1}{2}\sin\left(2t-\pi\right)$

$\frac{dy}{dx}=52.5-4y$

$\left[2\left(4xy\right)^{-2}\right]^3$

$1\frac{1}{2}\cdot24$

$\:6,706\:+\:-97,109$

$\lim_{x\to0}\left(\frac{ln\left(\frac{1+x}{1-x}-2x\right)}{xsenx}\right)$

$\int x^4\left(3+6x^5\right)^{10}dz$