If a(b1​+c1​ ),b(c1​+a1​ ),c(a1​+b1​ ) are in A.P. prove that a,b,c are in A.P.
Answers
Answered by
0
Answer:
ca
1
−
bc
1
=
abc
(b−a)
=
abc
(c−b)
[Using (1)]
=
ab
1
−
ca
1
ca
1
−
bc
1
=
ab
1
−
ca
1
⇒
bc
1
,
ca
1
,
ab
1
are in A.P.
Similar questions