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26-07-2018
Mathematics

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Write the sum without sigma notation. then evaluate. summation from k equals 1 to 5 cosine k pi

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antiochus antiochus

04-08-2018

summation from k equals 1 to 5 cosine k pi

= Cosine 1*∏ + Cosine 2*∏ + Cosine 3*∏ + Cosine 4*∏ + Cosine 5*∏

= -1 + 1 + -1 + 1 + -1

= -1

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