$x^{\sqrt{x}}\left(\frac{1}{2x^{\frac{1}{2}}}\right)$

$\int_2^{\infty}\left(\frac{1}{k\sqrt{lnk}}\right)dk$

$\int\left(5x^4-6x^3\right)dx$

$\frac{3x^6-7x^3+x-1}{x+2}$

$\frac{a^{12}-b^{12}}{a^3+a^2}$

$\sec\left(x\right)\cdot\cos^2x\cdot\tan\left(x\right)=\sin\left(x\right)$

$-12c=-180$