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Find the additive inverse of: $\sqrt 5$ .

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- 5

\sqrt 5

- 2.5

- \sqrt 5

answer is D.

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Detailed Solution

Concept: To find the additive inverse of a number, the sum of the given number and its additive inverse should be zero.
We are aware that a number x has an additive inverse, -x, which when combined with x results in the additive identity 0, that is

x + (- x) = x - x = 0

Now, since

\sqrt 5 + (- \sqrt 5) = 0

So,the additive inverse of

\sqrt 5

- \sqrt 5 .

Hence, the correct answer is option 4.

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