if x^2+1/x^2=66 ,then find the value of x+1/x
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(x+1/x)^2= x^2+1/x^2+2
(x+1/x)^2= 66+2
(x+1/x)^2=68
x+1/x= √68
x+1/x= 2√17
(x+1/x)^2= 66+2
(x+1/x)^2=68
x+1/x= √68
x+1/x= 2√17
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