Question

the mean of x and 1/x is 5
then the mean of x² ansd 1/x² is _______.​

Answer 1

Given : Mean of x and 1/x  is 5

To Find :  Mean of  x² + 1/x²

Solution:

Mean of x and 1/x  is 5

=> (x + 1/x)/2 = 5

=> x + 1/x  = 10

Squaring both sides

=> x² + 1/x² + 2x(1/x) = 10²

=> x² + 1/x² + 2 = 100

=>  x² + 1/x² = 98

=> ( x² + 1/x² )/2 = 49

Mean of  x² + 1/x² is  ( x² + 1/x² )/2

Hence Mean of  x² + 1/x² is   49

Learn More:

The average ages in years) of persons in groups A, B and C are ...

https://brainly.in/question/13429018

The average weight of goats and sheep in a shelter is 65 kgs, the ...

https://brainly.in/question/11654395

Answer 2

I don't know

this answer