If b + c minus A, C plus a minus b / a + b minus C C are in AP then prove 1 by a 1 by b c in AP

If b + c minus A, C plus a minus b / a + b minus C C are in AP then pr

1.	If b + c minus A, C plus a minus b / a + b minus C C are in AP then prove 1 by a 1 by b c in AP
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