b+c, c+a, a+b are in H.P., then a^2, b^2, c^2will be ina. APb. GPc. HPd. None of theseExplain the steps and how to approach in such questions

Dear Saawan,

The correct answer is b. GP

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Plz approve the answer....!!

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AMAN BANSAL

i know that the answer is b.

But tell me the explaination.!!

b+c, c+a, a+b are in H.P

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

2/c+a=1/b+c+1/a+b

by solving u get

2b² =a²+c²

So a^2,b^2,c²  are in A.P.

I think answer is A.P.