1.

If x2 +118, then the value of x-Ywill be​

Answer»

ANSWER:

x2+1/x2=18

subtract 2.x.1/x on both sides

x2+1/x2-2.x.1/x=18-2.x.1/x

(x-1/x)2=18-2

x-1/x=16



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