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If 1/ba, 1/ca, 1/cb are in A.P, then 2/ca = 1/ba + 1/cb taking L.C.M abc and calculating we get, again 2b = a + c.................(2) hence eqn. (1) and (2) are similar therefore this series is also in A.P. how take lcm

 
If 
1/ba, 1/ca, 1/cb are in A.P,
then
2/ca = 1/ba + 1/cb
taking L.C.M abc and calculating we get,
again
2b = a + c.................(2)
hence eqn. (1) and (2) are similar therefore this series is also in A.P.
how take lcm
 

Grade:10

1 Answers

Arun
25750 Points
5 years ago
Dear student
 
If in equation 1,
If we multiply by abc then
a, b, c will also be in A. P.
Regards
Arun (askIITians forum expert)

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