$4sen^2a-8sena+3=0$

$\ln\left(y\right)+c=\frac{x}{2}+c$

$\left(ln\:n\right)\left(x+2\right)^2$

$\left(2+x^2\right)^2+\left(x-2x\right)^2$

$\int te^{2t}dx$

$\frac{\left(tan\left(x\right)+tan\left(y\right)\right)}{\left(cot\left(x\right)+cot\left(y\right)\right)}=tan\left(x\right)tan\left(y\right)$

$\left(1-3y\right)^4$