Question

help?!?

If the sin 90° = 1, then which statement is true?

cos 0° = 1 because the cosine and sine are complements

cos 90° = 1 because the cosine and sine are supplements

cos 0° = 0 because the cosine and sine are complements

cos 90° = 0 because the cosine and sine are supplements

Answer 1

cos 0 = 1
sin 0 = 0
so .....

Answer 2

so its the 3rd answer

Answer 3

cos 0° = 1
sin 0° = 0
how is it the third answer, then ? ...

Answer 4

sorry 1st

Answer 5

yes

Answer 6

thx