Question

If the sin 60° = square root of three over two, then which statement is true?

Answer 1

cos 30° = square root of three over two, because the cosine and sine are complements
cos 120° = square root of three over two, because the cosine and sine are supplements
cos 30° = 0, because the cosine and sine are complements
cos 120° = 0, because the cosine and sine are supplements

Answer 2

@DIDITHEDAD

Answer 3

I can't help you on this one. :/