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Question
If the average of x and $$\frac{1}{x}$$ (x $$ \ne $$ 0) is M, then the average of x2 and $$\frac{1}{{{x^2}}}$$ is :
Options:
A .  1 - M2
B .  1 - 2M2
C .  2M2 - 1
D .  2M2 + 1
Answer: Option C

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