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In Delta ABC , if x=tan((B-C)/(2))tan.(A...

In `Delta ABC` , if `x=tan((B-C)/(2))tan.(A)/(2),y=tan((C-A)/(2))tan.(B)/(2) and z=tan((A-B)/(2))tan.(C)/(2)` then `(x+y+z)=`.

A

` xyz `

B

` - xyz `

C

` 2xyz`

D

` (1)/(2) xyz`

Text Solution

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The correct Answer is:
B
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