यदि cos theta (1) +cos theta (2) + cos ...

यदि `cos theta _(1) +cos theta _(2) + cos theta _(3) = 3,` है, तो `sin theta _(1) + sin theta _(2) + sin theta _(3)` किसके बराबर है ?

A

0

B

1

C

2

D

3

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