1,
1. Sin (9o-tita) cos tita + cos (90-tita) sin tita =
Answers
Answered by
1
Answer:
Sin (9o-tita) cos tita + cos (90-tita) sin tita =
= cos tita×cos tita+ sin tita×sin tita
= cos² tita + sin² tita
= 1
Similar questions