Which statement describes Ingrid’s claim that cosine of open paren negative pi over 2 plus y close paren is equal to sine of y and her steps in verifying her claim?
Answer
A
Ingrid’s claim is incorrect, but her steps are correct.
B
Ingrid’s claim is incorrect, and her steps are incorrect.
C
Ingrid’s claim is correct, and her steps are correct.
D
Ingrid’s claim is correct, but her steps are incorrect.