If the mean of x and 1/x is M, then the mean of \[{{x}^{2}}\] and s\[1/{{x}^{2}}\] is

If the mean of x and 1/x is M, then the mean of \[{{x}^{2}}\] and s\[1

1.	If the mean of x and 1/x is M, then the mean of \[{{x}^{2}}\] and s\[1/{{x}^{2}}\] is
A.	\[{{M}^{2}}\]
B.	\[{{M}^{2}}/4\]
C.	\[2{{M}^{2}}-1\]
D.	\[2{{M}^{2}}+1\]
Answer» D. \[2{{M}^{2}}+1\]

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If the mean of x and 1/x is M, then the mean of \[{{x}^{2}}\] and s\[1/{{x}^{2}}\] is

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