$\ln\frac{5x^2+3}{x^2}$
$1+tan^2\:sec^2$
$\int_{-\frac{\pi}{2}}^{\frac{\pi}{2}}xcos2xdx$
$\int_0^{\frac{1}{2}}\frac{1}{\sqrt{1-x^2}}dx$
$\frac{1+\tan\left(x\right)}{\sec\left(x\right)}$
$-9d+sn-3d$
$\left(\sqrt[2]{2x-5}\right)\left(\sqrt[2]{2x-6}\right)$
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