need sloution of dis one
Attachments:
Answers
Answered by
2
cos2x = 1-2sin²x
sin²x = (1-cos2x)/2
here, x=45°/2
sin²45°/2= (1-cos45°)/2
= (1-1/√2)/2
=(√2-1)/2√2
Similar questions
English,
6 months ago
Social Sciences,
6 months ago
Science,
11 months ago
Social Sciences,
11 months ago
Biology,
1 year ago