if a,b,c are positive and are the pth q...

if a,b,c are positive and are the pth qth and rth terms respectively of a G.P. then `Delta = |{:(log a,,p,,1),(logb,,q,,1),(logc,,r,,1):}|` is

A

1

B

-1

C

`(abc)/(pqr)`

D

0

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The correct Answer is:

D

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