Question

x+1/x =9 , x^2 +1/x^2 = 53
x-1/x =?​

Answer 1

Answer:

Formula:-

(x+1/x)^2+(x-1/x)^2=2(x^2+1/x^2)…………(1)

(9)^2+(x-1/x)^2= 2×53

(x-1/x)^2 =106 -81 =25

(x-1/x) = +/-(5) , Answer.