$3^0-3^4\cdot3^{-5}$

$3.8\sqrt{3}$

$4\log\:_{10}\left(x\right)-\log\:_{10}\left(\sqrt{x^5}\right)+\log\:_{10}\left(\sqrt[3]{x^2}\right)$

$2x+12x$

$\int_1^2\sqrt{1+4x^2}dx$

$\frac{dy}{dx}=\frac{9\sin\:\left(\theta\:\right)}{2\cos\:^2\left(\theta\:\right)}+\frac{9}{2}\times\:\ln\:\left(\frac{1+\sin\:\left(\theta\:\right)}{\cos\:\left(\theta\:\right)}\right)$

$5^2-2\cdot5\cdot4+4^2$