Question

( =left{begin{array}{l}frac{m+sqrt{m^{2}-n^{2}}-m-sqrt{m^{2}-n^{2}}}{m+sqrt{m^{2}-n}} int frac{n^{2}}{4 m sqrt{m^{2}-n^{2}}} =left[frac{left(m+sqrt{m^{2}-n^{2}}-2^{2}-(m-sqrt{m^{2}-n^{2}})^{2}right.}{(m-sqrt{m^{2}-n^{2}})(m+sqrt{m^{2}-n^{2}})}right]^{frac{n^{2}}{4 m sqrt{m^{2}-n^{2}}}}end{array}right. )
( =frac{4 m sqrt{a^{2}}-n^{2} times 2^{2}}{20^{2}} times frac{4}{4 m sqrt{m^{2}}-n^{2}} )
( =(1) )

# m m+Vm²- nm-ım’-n nº m-Vm- n²m+Vm– nJ4mm -n2

Solution