$3\tan\left(x\right)-\sqrt{12}\sin\left(x\right)$

$\int\left(16\right)dx$

$\frac{sin7x+sin3x}{cos7x+cos3x}=tan\left(5x\right)$

$\int\left(\frac{2x^4-4\sqrt{x}+1}{\sqrt[3]{x}}\right)dx$

$\int\frac{1}{4+\left(x-3\right)^{2}}dx$

$\frac{d}{dx}\left(\sqrt{\frac{x+1}{x^3+1}}\right)$

$\left(14mn-12\right)^2$