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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., the the value of `|(loga, p, 1),(logb, q, 1),(logc, r, 1)|=` (A) 1 (B) `pqr(loga+logb+logc)` (C) 0 (D) `a^pb^qc^r`

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