prove that 2cos²45°-1 = Cos90°
Answers
Answered by
2
cos 45 is 1/ root 2
and cos 90 is 0
Attachments:
Answered by
1
Answer:
I do not see this picture
Similar questions
Math,
3 months ago
World Languages,
3 months ago
Math,
3 months ago
Psychology,
7 months ago
Math,
11 months ago
Physics,
11 months ago
Science,
11 months ago