If \[\frac{a+b}{1-ab},\ b,\ \frac{b+c}{1-bc}\] are in A.P., then \[a,\ \frac{1}{b},\ c\] are in

If \[\frac{a+b}{1-ab},\ b,\ \frac{b+c}{1-bc}\] are in A.P., then \[a,\

1.	If \[\frac{a+b}{1-ab},\ b,\ \frac{b+c}{1-bc}\] are in A.P., then \[a,\ \frac{1}{b},\ c\] are in
A.	A.P.
B.	G.P.
C.	H.P.
D.	None of these
Answer» D. None of these

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If \[\frac{a+b}{1-ab},\ b,\ \frac{b+c}{1-bc}\] are in A.P., then \[a,\ \frac{1}{b},\ c\] are in

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