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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

`-2xyz`

B

`2xyz`

C

`xyz`

D

`-xyz`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-REVISION EXERCISE-PROPERTIES OF TRIANGLES
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