Just help answer a.)

C = b = C= 4. Given point (r, y) is on the terminal side of angle 0, with A in standard position, find the values of sin 0, cos 0, and tan 0. Simplify your answers, but leave in exact form. (a) (8, -6) (b) (-3, -1) sin 0 = sin 0 = cos ! = cos 0 = tan 0 = tan 0 =