sinθ+sin(60-θ) +sin(60+θ) is equal to
Answers
Answered by
0
Answer:
sin Ф + √3 cos Ф.
Step-by-step explanation:
sinФ + sin (60 - Ф) + sin (60 + Ф)
= sin Ф + sin 60 cos Ф - cos 60 sinФ + sin 60 cos Ф + cos 60 sinФ
= sin Ф + √3/2 cos Ф + √3/2 cosФ
= sin Ф + √3 cosФ
Similar questions