Express 1+2 sin theta as a perfect square
Answers
Answered by
1
Answer:
(sin theta +cos theta ) whole square
Step-by-step explanation:
1+sin theta= sin square theta +cos square theta + 2 sin theta =
answer
Answered by
0
1+sinA=1+sin2×A/2
=1+sin(A/2+A/2)
=1+sinA/2cosA/2+cosA/2sinA/2
=1+2sinA/2cosA/2
=sin^2A/2+cos^2A/2+2sinA/2cosA/2 {sin^2+A+cos^2A/2=1}
- ={sinA/2+cosA/2}^2 which is a perfect square
Attachments:
Similar questions