1.

If m-1/m= 3,then fimd the value of m2+1/m2 plz fast​

Answer»

m - \frac{1}{m} = 3

by \: squaring \: both \: the \: sides \: we \: get - - - - -

(m - \frac{1}{m} )^{2} = {3}^{2}

{m}^{2} + { \frac{1}{m} }^{2} - 2 \times m \times \frac{1}{m} = 9

{m}^{2} + { \frac{1}{m} }^{2} - 2 = 9

{m}^{2} + { \frac{1}{m} }^{2} = 9 + 2

{m}^{2} + { \frac{1}{m} }^{2} = 11


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