Mathematic Quiz 10

Question:
If 0 ≤ x ≤ 180, find the values of x that satisfy the equation: sin x + sin 5x = sin 3x.
(Note : Trigonometry)

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3. Mathematic Quiz 10 is closed on December 31, 2009.
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Mathematic Quiz 9
Answer : 5 minutes
Click here for details.
Winner : Dina Nur Rahmawati ( XI IPA 2)