)22) (1) Question 11, 5.4.6 Part 3 of 4 Verify that the equation is an identity K sin (x - y) tan x - tan y sin (x + y) tanx + tany Rewrite the expressions sin (x - y) and sin (x + y) using the sine of a difference and sine of a sum identities sin (x - y) sin x cos y - cos x sin y sin (x + y) sin x cos y + cos x sin y Which of the following operations is the best way to simplify this rewritten expression? A. Divide both the numerator and denominator by cos x cos y. O B. Multiply both the numerator and denominator by cos x cos y O C. Divide both the numerator and denominator by tan x tan y. O D. Multiply both the numerator and denominator by tan x tan y. Doing this and writing the results in terms of sine and cosine yields (Simplify your answers.) Vi tor Ask my instructor