The exact value of sin285 is written as a radical in the form -va - Vb The sum of a and b is 4 Answer: To verify the identity 1 - sin 0 cos 0tan 0 = cos20, a student substituted 0 = 337. To the nearest hundredth, the value of each side of the identity was Answer: The expression cos(A - T ) + sin(A - It ) can be simplified to Select one: O a. COSA - sinA O b. sinA - COSA O c. sinA + COSA O d. - sinA - COSA