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l, m,n are the p^(th), q ^(th) and r ^(t...

l, m,n are the `p^(th), q ^(th) and r ^(th)` term of a G.P. all positive, then `|{:(logl, p, 1),(log m, q, 1),(log n ,r,1):}|` equals :

A

0

B

`-1`

C

`p+q+r`

D

None of these

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The correct Answer is:
A
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