find the value of x^2+1/x^2 if x-1/x=root3
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the value will be 1
(x-1/x)^2-2=x^+1/x^2
1 = x^2+1/x^2
(x-1/x)^2-2=x^+1/x^2
1 = x^2+1/x^2
karthikeya12345:
no i cant understand explain be better
make square of x-1/x you will get x^2+1/x^2 -2 when you add 2
you will get x^2 + 1/x^2
(x-1/x)^2 +2 = x^2 +1/x^2
(root 3)^2 +2 =5
sorry i have made a silly mistake
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