Solve the sum given below.....

Dear student
(x - 1/x)^2= (x +1/x)^2 -4 = (6)^2 - 4 = 36 - 4 = 32
(x-1/x) = root(32)
x^2 - 1/x^2=(x+1/x)(x-1/x) = ( 6)( root32)
regards.

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