Question cos 165
can it be solved by using the special angle
cos 150 + cos 15
cos 150 + cos (60-45)
Can it be solved in this way and will it provide me the correct answer
Hello, mj.alawami!
It is simpler with only two angles, of course . . .Question: cos 165
can it be solved by using the special angle
cos 150 + cos 15
cos 150 + cos (60-45)
Can it be solved in this way and will it provide me the correct answer? . . . . Yes!
Try: .
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