Conjugate of $\sqrt{5} - 1$ is

Conjugate of $\sqrt{5} - 1$ is
  1. $\sqrt{5} + 1$
  2. $1 - \sqrt{5}$
  3. $-\sqrt{5} - 1$
  4. $\sqrt{5} - 1$

Solution

For $\sqrt{a} - b$, conjugate is $\sqrt{a} + b$.

Asked in: MH-SSC-9

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