Question

If  (y + 1/y) = 8 then,   (y² +1/y²) is​

Answer 1

Given:-

•y+1/y=8

To find:-

•Value of y²+1/y²

Solution:-

By squaring both sides in the equation,y+1/y=8,we get--

=>(y+1/y)²=(8)²

=>(y)²+(1/y)²+2×y×1/y=64

=>y²+1/y²+2=64

=>y²+1/y²=64-2

=>y²+1/y²=62

Thus,value of (y²+1/y²) is 62.