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0 votes
3.2k views
in Mathematics by (69.5k points)

Let a, b, c be positive integers such that a√2+b/b√2+c is a rational number, then which of the following is always an integer ?

1 Answer

+1 vote
by (74.3k points)
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Best answer

Correct option (D)

Explanation:

Is rational when b2 = ac i,e. a, b, c are in GP 

 Here given option (A),(B), (C) does not satisfy the criteria 

 But option (D) always satisfy

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