Question

if a b c are in A.P.Prove ab,bc,ca are in H.P

Answer 1

If  your query is:  If  a, b, c  are in A.P. , then prove that  bc ,  ca and ab are in  H.P.

Then, the solution is:

To prove that  bc ,  ca  and  ab  in  H.P.

Since a, b, c  are in A.P.


 ⇒  bc  ,  ca  and  ab  are in  H.P.

Answer 2

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if a b c are in A.P. then Prove that ab,bc,ca are in H.P.

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To prove that ab , bc , ca are in H.P.

since a, b, c are in A.P.

so ab bc ca are in H. P.

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