if cos + sin = 2cos show that cos- sin = 2sin
Answers
Answered by
0
Step-by-step explanation:
hope it will help you
Attachments:
Answered by
2
Answer:
its answer is
Step-by-step explanation:
see
cos+sin=2cos
sin=2cos-cos
sin=cos_ _ _(i)
cos-sin=2sin
cos-sin=2cos (fromi)
cos-sin=cos+sin
cos-cos=sin+sin
sin-cos=2sin (from i)
Hence proved
Similar questions
Math,
5 months ago
History,
5 months ago
Social Sciences,
5 months ago
Math,
9 months ago
Math,
9 months ago
English,
11 months ago
Social Sciences,
11 months ago
Biology,
11 months ago