1.

If A+B+C=0^(@) then sin A +sin B+sin C=

Answer»

`4sin A//2sinB//2 sin C//2`
`-4sinA//2 sinB//2 sin C//2`
`4COS A//2 COS B//2 cos C//2`
`-4cosA//2 cos B//2 cos C//2`

ANSWER :B


Discussion

No Comment Found

Related InterviewSolutions