Which of the following are identities? Check all that apply. A. cos(x + y) + cos(x - y) = 2cos x cosy
B. sin(x + y) - sin(x-y) = 2cosx siny
C. cos(x + y) + cos(x - y) = cos x -
- sin? y
D. sin(x - 7T) = - sinx

The point (-7, -24) is on the terminal ray of angle 0 which is in standard position. a student found the six trigonometric values for angle e. the student's answers are shown. which value(s) are incorrect? sin(8) cos(8) 24 tan(0) sin(0)=25 cos(0) -- tan(ⓡ) - - 24 csc(o)=2 sec(0) --25 cot(6) - za csc(o) sec(0) cot(0) done