Prove that :
(i) sin 105° + cos 105º =
(ii) cos 105° + cos 15º = sin 75
Answers
Answered by
0
Answer:
LHS =cos105 + cos15 =cos (90+ 15) + cos (90-75) =-sin15+sin75 ... Prove that cos 105 + cos 15=sin 75-sin 15. 2. See answers. Log in to ...
Step-by-step explanation:
follow me on way home from work at the end of my favorite things to do
Similar questions