Question

x+1/x = 4 then what is the value of x-1/x​

Answer 1

Answer:

√12

Step-by-step explanation:

x +1/x = 4

squaring both side

(x+1/x)^2 = 16

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

x^2 + 1/x^2 = 14

-2 add both side

x^2 + 1/x^2 -2. = 14-2

(x -1/x )^2 = 12

x -1/x = √12 ✓✓✓✓✓

hope it's helpful (•‿•)