CALLING THE BRAINIEST OF BRAINS (: this is a tough one please include work because I'd like to actually understand the problem, and also I have to show work on this assignment. You have to use the information in the picture to determine what the values of 1, 2, 3, and 4 are. I'm moderately sure it should be expressed in radians.

GIVE EXACT ANSWERS

1) sin (A-B)

2) cos (A-B)

3) tan (A-B) (dont rationalize the denominator please)

4) what quadrant of the unit circle is angle (A-B) in?