16 To answer questions 12 17 use the formulas for functions

Last updated: 3/5/2023

16 To answer questions 12 17 use the formulas for functions of the difference and sum of two angles to find without tables or calculator the cosine sine and tangent of the angle 15 using 45 and 30 tan 15 A 1 tan 45 tan 30 tan 45 tan30 OB O C O D tan 45 tan 30 1 tan 45 tan 30 tan 45 tan 30 1 tan 45 tan 30 1 tan 45 tan 30 tan 45 tan30