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If sinx1+sinx2+sinx3=3,The value of cosx1+cosx2+cosx3?Show the solution

If sinx1+sinx2+sinx3=3,The value of cosx1+cosx2+cosx3?Show the solution

Grade:11

1 Answers

orange panda
4 Points
8 years ago

it is possible if x1=x2=x3=pi/2.so cosx1+cosx2+cosx3=0

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