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If a (2 + sqrt(3)) = b ( 2 - sqrt( 3)) ...

If ` a (2 + sqrt(3)) = b ( 2 - sqrt( 3)) = 1 ` then the value of ab ?

A

(A)`-5`

B

(B)1

C

(C)4

D

(D)9

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The correct Answer is:
B
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