$3^2\cdot3^3\cdot4^0$

$\frac{\left(-1\right)^{39}}{\left(-1\right)^{15}}$

$\int e^x\sin\left(bx\right)dx$

$\int7x\left(7x^2-2\right)^3dx$

$\lim_{x\to0}\left(\left(\frac{1+x\cdot\:2^x}{1+x\cdot\:3^x}\right)^{\frac{1}{x^2}}\right)$

$\frac{d}{dx}\frac{2+x}{x^2+3}$

$o^6+64q^6$