$\left(7y^5\right)^3$

$\lim_{x\to0}\left(3x\right)^{\left(\frac{x}{2}\right)}$

$\int\frac{9}{11}e^{\frac{1}{3}}^xdx$

$\frac{dr}{dx}-r\tan\left(x\right)=\sec\left(x\right)$

$\sqrt{2}\sec\left(\frac{1}{5}x\right)=-2$

$\left(3x^2-5xy+7y^2\right)+\left(-2x^2+3xy-4y^2\right)$

$\sec\left(2a\right)+\tan\left(2a\right)$