1.

The pth, qth and rth terms of an A.P. are a, b, c, respectively. Show that (q−r)a+(r−p)b+(p−q)c=0.

Answer»

The pth, qth and rth terms of an A.P. are a, b, c, respectively. Show that (qr)a+(rp)b+(pq)c=0.



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