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6 November, 20:09

Determine which expression is equivalent to cos3O.

A. 3sin^3O-4cosO

B. 3cos^4O-4cosO

C. 4cos^3O-3cosO

D. 4sin^3O-3cosO

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Answers (1)
  1. 6 November, 21:49
    0
    6 times 2 is 12. B is than answer
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