Question

If a, b, c be respectively the pth, qth and rth terms of a H.P., then │ bc ca ab │
△ = │ p q r │equals │ 1 1 1 │
(a) 1 (b) 0 (c) -1 (d) none of these

Answer 1

I think it will be none of this

Answer 2

Answer:

I think it will be none of this