$\frac{2}{2^{\frac{1}{2}}\pi\:^{\frac{1}{2}}a}\cdot\:\frac{2\pi\:^{\frac{1}{2}}}{2^3\left(\frac{1}{2a^2}\right)}$

$c\cdot\:\:sin^2x$

$\left(\sqrt{x}\:+\sqrt{3y}\right)\left(\sqrt{x}\:+\sqrt{3y}\right)$

$\left(\frac{2}{3}x^2-4y^3\right)^2$

$-99-\left(-23\right)$

$\frac{\left(12n-1\right)\left(x^{3n-1}\right)}{\left(2^n\right)}$

$\int\frac{2x+9}{x+2}dx$