Sign in
Please select an account to continue using cracku.in
↓ →
Expression : $$x - \frac{1}{x} = 3$$
Squaring both sides, we get :
=> $$x^2 + \frac{1}{x^2} - 2.x.\frac{1}{x} = 9$$
=> $$x^2 + \frac{1}{x^2} - 2 = 9$$
=> $$x^2 + \frac{1}{x^2} = 9 + 2 = 11$$
Create a FREE account and get: