If sinθ1 + sinθ2 + sinθ3 = 3, then cosθ1 + cosθ2 + cosθ3 =
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Answer:
sin theta1 + sin theta2 + sin theta3 =3
It is only possible when,
sin theta1 = sin theta2 = sin theta3 =1
[Since sin has maximum value of 1]
Therefore, theta1=theta2=theta3=π/2
So,
cos π/2+cos π/2+cos π/2=0
Hope it helps you.
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