Practicing Success
Practicing Success
CUET Preparation Today
If a + \(\frac{1}{a + 3}\) = 7 Then find , (a + 3)2 + \(\frac{1}{(a + 3)^2}\) |
100 98 102 96 |
98 |
Given = a + \(\frac{1}{a + 3}\) = 7 By adding 3 on both sides we get, (a + 3) + \(\frac{1}{a + 3}\) = 7 + 3 = 10 (a + 3)2 + \(\frac{1}{(a + 3)^2}\) = 102 - 2 = 98
If x + \(\frac{1}{x}\) = a then, x2 + \(\frac{1}{x^2}\) = a2 - 2 |
