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IKMC 2007 - Grades 11-12 - Self-study Question 14

IKMC · IKMC 2007 - Grades 11-12 - Self-study

Question 14

Find $\cos1^\circ+\cos2^\circ+\cdots+\cos358^\circ+\cos359^\circ$.
  1. 1
  2. $\pi$
  3. 0
  4. 10
  5. −1