$\cos^{2}x\frac{d\overline{u}}{dx}+y-1=0,\quady\left(0\right)=-3$

$\int_0^{\pi}\left(15\sin\left(3x\right)^5\right)dx$

$\int5\sqrt{1+x^2}dx$

$\left(-5.683\right)\cdot7$

$\:-3\cdot5+7-3\cdot4-10\cdot2$

$7=-3c-2$

$\lim_{t\to5}\left(\frac{\left(1-t\right)\left(t+5\right)}{3t-7}\right)$