If x - 1/x = 3, The value of $$x^2 + 1/x^2$$ is
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:
Detailed syllabus & Topic-wise Weightage
By proceeding you agree to create your account
Free CAT Syllabus PDF will be sent to your email address soon !!!
