1.

If b+ca,c+ab,a+bc are in A.P., prove that (i) 1a,1b,1c are in A.P. (ii) bc, ca, ab are in A.P.

Answer» If b+ca,c+ab,a+bc are in A.P., prove that
(i) 1a,1b,1c are in A.P.
(ii) bc, ca, ab are in A.P.


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