Question

Conjugate surd of 2 - square root 5 answer

Answer 1

Given,

Surd $\[ = 2 - \sqrt 5 \]$

Solution,

Consider $\[a + \sqrt b \]$ is a surd then conjugate surd will be $\[a - \sqrt b \]$.

Calculate the conjugate surd.

Surd $\[ = 2 - \sqrt 5 \]$

Conjugate surd $\[ = 2 + \sqrt 5 \]$

Hence the conjugate surd is $\[ 2 + \sqrt 5 \]$.