Question

The mean of x and 1/x is 5
then the mean of x^2 and 1/x^2 is​

Answer 1

$\huge \boxed{ \color{red}{given}}$

The mean of x and 1/x is 5

then the mean of x^2 and 1/x^2 is

$\huge \boxed{ \color{blue}{solution}}$

(x+1/x)^2

=x^2+1/x^2+2.x.1/x=5

=x^2+1/x^2=7