$\left(2-\text{sen}\left(x\right)\right)\left(\cos\left(x\right)\right)\left(\tan\left(x\right)\right)=\cos2\left(x\right)$

$\int\left(\frac{a+bx^9}{\sqrt{10ax+bx^{10}}}\right)dx$

$\lim_{x\to\frac{w}{2}}\left(\frac{\cos\left(x\right)}{1-sen\left(x\right)}\right)$

$\int\left(\frac{5sin^3\left(x\right)}{cos\left(x\right)}\right)dx$

$\left(\frac{x}{5}-\frac{y}{7}\right)^2$

$a^{x-2}\cdot a$

$y=x+6,\:y=x^3,\:2y\:+x=0$