Solve sqrt{m^2-n}-sqrt{9m^2n}+sqrt{10mn^2}-sqrt{4mn^2}

$$\sqrt { m ^ { 2 } - n } - \sqrt { 9 m ^ { 2 } n } + \sqrt { 10 m n ^ { 2 } } - \sqrt { 4 m n ^ { 2 } }$$

Evaluate

$$-2\sqrt{mn^{2}}-3\sqrt{nm^{2}}+\sqrt{10mn^{2}}+\sqrt{m^{2}-n}$$

Differentiate w.r.t. m

$$\frac{\sqrt{\frac{10}{m\left(m^{2}-n\right)}}\left(-|m|\sqrt{10\left(m^{2}-n\right)}n^{2}-3|n|m^{\frac{3}{2}}\sqrt{10n\left(m^{2}-n\right)}+5|m|\sqrt{m^{2}-n}n^{2}+\sqrt{10}|m||n|m^{\frac{3}{2}}\right)}{10|m||n|}$$