SOLUTION: cos beta=0.4, find the value of cos beta +cos(beta+2pi)+cos(beta+4pi)
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Question 1022246: cos beta=0.4, find the value of cos beta +cos(beta+2pi)+cos(beta+4pi)
Answer by ikleyn(52835) (Show Source): You can put this solution on YOUR website!
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cos beta=0.4, find the value of cos beta +cos(beta+2pi)+cos(beta+4pi)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
= ;
= .
Therefore
+ + = .
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