If a²(b+c) , b²(c+a) , c²(a+b) are in A.P. then -
(A) a, b, c are in A.P.
(B) ab + bc + ca = 0
(C) a, b, c are in G.P.
(D) ab - bc - ca = 0
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answer is B) ab+bc+ca=0
harishvermabaq:
Will you please explain how you get this. And correct answer is A as well as B
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