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| Math Central | Quandaries & Queries |
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Question from Michael, a student: Could you please help with this one. 32 cis30degrees / 4 cis150degrees |
Hi Michael.
Think about "Reference Angles". What is the reference angle for 150 degrees? Is cosine positive or negative there? Can you cancel out the cosines?
Cheers,
Stephen La Rocque.
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