$$\int_0^{\frac{\pi}{3}}12\left(x^2+2\right)\left(sen\:\left(2x^3+12x\right)\right)dx$$

$$64+3^3-2\left(2-3\right)^2$$

$$\int\left(e^{5x}\left(4+e^{5x}\right)^4\right)dx$$

$$14xy^4\left(-14xy\right)$$

$$20x^4+5n^5$$

$$\left(0.36\right)+\:\left(-2.5\right)$$

$$\lim_{x\to0}\left(\frac{1}{e^x-1}-\frac{1}{\tan\left(x\right)}\right)$$