Davis drew a unit circle and labeled the cosine and sine of 45° as . Assuming that Davis is correct, which of the following statements must be true?
A.
B.
C.
D.
Answer:A
Davis drew a unit circle and labeled the cosine and sine of 45° as . Assuming that Davis is correct, which of the following statements must be true?
A. B. C. D.
Explanation: A