$\int\frac{1}{v\left(1+v^2\right)}dv$

$0.1+\frac{3}{5}+\frac{4}{5}$

$\frac{dy}{dx}=1+xy$

$sin\left(\frac{\pi}{2}+x-y\right)=cos\left(x\right)cos\left(y\right)+sin\left(x\right)sin\left(y\right)$

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

$x^2-9x-10=30$

$\left(\frac{2}{3}a+\frac{5}{4}b\right)^3$