2009 · Q22
If cos x + cos 2 x = 1, then what is the value of sin 2 x + sin 4 x?
Elementary MathematicsGeometry
- A0
- B1
- C2
- D4
Explanation
Solved; answer B.
If cos x + cos 2 x = 1, then what is the value of sin 2 x + sin 4 x?
Explanation
Solved; answer B.