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1.1.If (x+1/x) =2 and (x-1/x) = 1/2 the...

1.1.If `(x+1/x) =2` and `(x-1/x) = 1/2` then 1) ` (x^2 -1/x^2) =1` 2) `(x^2+1/x^2)=4` 3)`(x^2+1/x^2)=2` 4) `(x^2-1/x^2) =2`

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