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Choose the correct alternative answer for the following question
What is the conjugate pair of `2\sqrt{5} -5\sqrt{2}`?

A

`2\sqrt{5} +5\sqrt{2}`

B

`5\sqrt{2} -2\sqrt{5}`

C

`5\sqrt{5} +2\sqrt{2}`

D

`2\sqrt{5} -5\sqrt{2}`

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The correct Answer is:

A

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