Question

If the sin 90° is 1, then the cos ____ °= _____.

Answer 1

what are you asking exactly

Answer 2

90° ; 1 over 2

0° ; square root 2 over 2

90° ; square root 3 over 2

0° ; 1
- these are the potential answers

Answer 3

cos(90 degree) is 0. cos0 is 1.

Answer 4

so it would be D?

Answer 5

yes you can check it with a calculator

Answer 6

or you can draw a trig circle which is really helpful with memorizing them

Answer 7

Thank you!