wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Simplify 5cosθ+3cos(θ+π3)+3

Open in App
Solution

cos(A+B)=cosAcosBsinAsinB
cosπ3=12,sinπ/3=32
5cosθ+3[cosπ3cosθsinπ3sinθ]+3
5cosθ+3[cosθ23sinθ2]+3
5cosθ+3cosθ2332sinθ+3
13cosθ2332sinθ+3

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Pythagorean Identities
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon