$40\left(-297\right)$

$\int t\cdot\cos\left(3t+2\right)dt$

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

$\lim_{x\to0}\left(\frac{e^{-x}-e^{-2x}}{sen^2x}\right)$

$125-\left(-114\right)$

$\lim_{x\to0}\left(\frac{1}{sen\left(x\right)\sqrt{x\cdot sen\left(x\right)}}-\frac{1}{x\sqrt{x\cdot sen\left(x\right)}}\right)$

$y^2+10y+1$