vikas
Last Activity: 6 Years ago
given: (a+b)/c,(a+c)/b,(b+c)/a are in AP
to prove: (a+b)/c,(a+c)/b,(b+c)/a are in AP
proof,
since,common difference remain samein two successive term of an AP.
so
(a+c)/b – (a+b)/c = (b+c)/a – (a+b)/c
or (ac+c^2-ab-b^2)/bc = (b^2+bc-a^2+ac)/ab
or (ac+c^2-ab-b^2)/c = (b^2+bc-a^2+ac)/a
or b^2c+