Question

If x + 1/x =4 then x-1/x is equal to in hindi

Answer 1

Good Morning!!

x - 1/x = √{ ( x + 1/x )² - 4 }

x + 1/x = 4 ...Given

So,

x - 1/x = ±√{ (4)² - 4 }

x - 1/x =± √(12)

x - 1/x =± 2√3