Question: PLEASE FIX THIS ANSWER, PLEASE GET THE RIGHT ANSWER, THANK YOU. Write the sum without sigma notation. Then evaluate. 2(1)*+4 COS k K = 1

PLEASE FIX THIS ANSWER, PLEASE GET THE RIGHT ANSWER, THANK YOU.

Write the sum without sigma notation. Then evaluate. 2(1)*+4 COS k K = 1 Write the sum without sigma notation. - COS (1) + COS - COS (Do not simplify. Do not evaluate.)
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