If a square plus 2bc,b square+2ca,c square+2ab are in AP prove that 1/b-c,1/c-a,1/a-b are in AP

If a square plus 2bc,b square+2ca,c square+2ab are in AP prove that 1/

1.	If a square plus 2bc,b square+2ca,c square+2ab are in AP prove that 1/b-c,1/c-a,1/a-b are in AP
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