If sintheta1+sintheta2+sintheta3 = 3 , t...

If `sintheta_1+sintheta_2+sintheta_3 = 3 ,` then `costheta_1+costheta_2+costheta_3` is equal to............... `(a) 3 (b) 2 (c) 1 (d) 0`

A

3

B

2

C

1

D

0

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The correct Answer is:

D

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