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In a DeltaABC, tan.(A)/(2)=(5)/(6), tan....

In a `DeltaABC`, `tan.(A)/(2)=(5)/(6)`, `tan.(C)/(2)=(2)/(5)`, then

A

`a,c,b` are in A.P.

B

`a,b,c` are in A.P.

C

`b,a,c` are in A.P.

D

`a,b,c` are in G.P.

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The correct Answer is:
B
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