$\sqrt{\frac{5}{4}}x^2\left(5\right)$

$\left(-\frac{64}{27}\right)^{\frac{2}{3}}$

$x^4+3x^2+81$

$\tan\left(2a\right)=\left(\sec\left(2a\right)+1\right)\sqrt{\sec^2\left(a\right)-1}$

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

$\int_1^x\left(\ln\left(z\right)\right)dz$

$\int\left(\frac{3+x^3}{x}+\frac{1}{x^7}\cdot x^6+5\right)dx$