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pipantasi4 2022-07-08 Answered
Sum of n = 1 N cos ( k x ω t + n θ )
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Answers (1)

Caiden Barrett
Answered 2022-07-09 Author has 20 answers
n = 1 N cos ( n θ + a ) = n = 1 N ( cos ( n θ ) cos a sin ( n θ ) sin a ) = cos a n = 1 N cos ( n θ ) sin a n = 1 N sin ( n θ ) .
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