Question

 If x + (1/x) = 5, find the value of [x - (1/x)]^2.​
no fake answer

Answer 1

Answer:

x+1/x =5

squaring on both side we get

${x}^{2} + 1 \div {x }^{2} = 25$

now ( X-1/X) ^2 = X^2 + 1/X^2 -2*x*1/x

=25-2

=23

Hence Required answer is 23