If cos A + cos B + cos C = 3, then what is the value of sin A + sin B + sin C?
A1
B2
C0
D-1
Answer:
C. 0
Read Explanation:
Cos 0° = 1
Sin 0° = 0
cos A + cos B + cos C = 3
cos A = cos B = cos C = 1
A = B = C = 0° [Cos 0° = 1]
sin A + sin B + sin C = sin 0° + sin 0° + sin 0°
= 0
