Practicing Success
Practicing Success
CUET Preparation Today
If x + \(\frac{1}{x}\) = 15 then find the value of x - \(\frac{1}{x}\) |
\(\sqrt {221}\) \(\sqrt {219}\) \(\sqrt {227}\) \(\sqrt {226}\) |
\(\sqrt {221}\) |
⇒ If x + \(\frac{1}{x}\) = a then x + \(\frac{1}{x}\) = \(\sqrt {a^2 - 4}\) Here, x + \(\frac{1}{x}\) = 15, then ⇒ x - \(\frac{1}{x}\) = \(\sqrt {(15^2 - 4}\) = \(\sqrt {221}\) |
