4. Prove the following trigonometric identities (a) (a 1 - tane cos 20 1+tan²8 [2] (b) (1 - cos é sin ()(1 + cos 6 sin 6
Posted: Sat Feb 26, 2022 10:56 am
4. Prove the following trigonometric identities (a) (a 1 - tane cos 20 1+tan²8 [2] (b) (1 - cos é sin ()(1 + cos 6 sin 6) = sinº 0 + cose [2] (c) sin 1 + cos2 1 + cos sin sin [2] sin e Hence, solve exactly 1 + cos @ + in the interval - 2 <0 < 2. 1 + cose sin e V3 giving your answers in terms of . [3] ]