\(x^2+\frac{1}{x^2}=23\) then \(x+\frac{1}{x}=\)_______ – McqOptions

MCQOPTIONS

1.	\(x^2+\frac{1}{x^2}=23\) then \(x+\frac{1}{x}=\)_______
A.	\( \pm \sqrt {27} \)
B.	\( \pm \sqrt {21} \)
C.	±5
D.	±6
Answer» D. ±6

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