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If (m+1)th , (n+1)th , (r+1)th term of a...

If (m+1)th , (n+1)th , (r+1)th term of an A.P. having first term a and common difference d are in G.P and m ,n ,r are in H.P. then `(2a)/(d)` =

A

n

B

`-n`

C

`1//n`

D

`-2n`

Text Solution

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The correct Answer is:
B
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