$\int_0^{\left(\frac{\pi}{6}\right)}\left(\cos\left(3x\right)-\sin\left(2x\right)+\sqrt{3}\sec\left(x\right)^2\right)dx$

$\left(x^2y^3\right)^4\left(xy^4\right)^{menos\:3}\:\frac{x}{y}^2$

$x^2+4+5y^2+2x^2-2x^2-6+1$

$\int-2xe^{5x}dx$

$4>3x+6$

$\int\frac{x^4}{e^x}dx$

$5\cdot687$