$\left(3.285\sqrt{1.06906384}-12.5\ln\left(-.2628+\sqrt{1.06906384}\right)\right)$

$\frac{dy}{dx}=\frac{xy^2}{x^2+1}\:;y\left(0\right)=-9$

$7-\frac{3}{4}x>1$

$\left(\frac{1}{2}x^3-\frac{2}{5}y^2\right)^2$

$\int2x^2+x\left(x+1\right)dx$

$\cos\left(x\right)\tan\left(y\right)=\sin\left(z\right)$