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If 1/a,1/b,1/c are in A.P. and a+b+cne0...

If `1/a,1/b,1/c `are in A.P. and `a+b+cne0_2` prove that `(b+c)/a,(c+a)/b,(a+b)/c`are in A.P.

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`1/a.1/b,1/c` are in A.P.`implies(a+b+c)/a,(a+b+c)/b,(a+b+c)/c` are in A.P. `implies(a+b+c)/a-1,(a+b+c)/b-1,(a+b+c)/c-1` are in A.P. `implies(b+c)/a,(c+a)/b,(a+b)/c` are in A.P.
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