Let A, B and C are the angles of a plain...

Let A, B and C are the angles of a plain triangle and `tan(A/2)=1/3,tan(B/2)=2/3` then `tan(C/2)` is equal to............
A) `7/9` B) `2/9` C) `1/3` D) `2/3`

A

`7/9`

B

`2/9`

C

`1/3`

D

`2/3`

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The correct Answer is:

A

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