Question

If x-1/x = 4, then find the value of x+1/x

Answer 1

Answer:

4x = x-1 =x = -1/3

-1/3-3=-10/3

Answer 2

Step-by-step explanation:

x-1/x=4

on squaring both sides

(x-1/x)^2=(4)^2

x^2+1/x^2-2 × X ×1/X=16

x^2+1/x^2=16-2

x^2+1/x^2=14

on square root on both sides

√x^2+1/x^2=√14

x+1/x=√14