If x 2 +1/x 2 =14, find the value of x+1/x
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x 2 +1/x 2 =14
or, (x+1/x)^2-2x.1/x =14 since a^2+b^2= (a+b)^2-2ab
or, (x+1/x)^2-2= 14
(x+1/x)^2=14+2=16
(x+1/x)= √16=4 or -4
or, (x+1/x)^2-2x.1/x =14 since a^2+b^2= (a+b)^2-2ab
or, (x+1/x)^2-2= 14
(x+1/x)^2=14+2=16
(x+1/x)= √16=4 or -4
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