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If A+B+C=pi, then the value of (tan ""A...

If `A+B+C=pi, ` then the value of `(tan ""A/2 tan ""B/2+tan ""B/2 tan ""C/2 + tan ""C/2 tan ""A/2)` is-

A

0

B

`-1`

C

1

D

2

Text Solution

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The correct Answer is:
C
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