Best Answer

2sinx - sin3x = 0

2sinx - 3sinx + 4sin3x = 0

4sin3x - sinx = 0

sinx(4sin2x - 1) = 0

sinx*(2sinx - 1)(2sinx + 1) = 0

so sinx = 0

or sinx = -1/2

or sinx = 1/2

It is not possible to go any further since the domain for x is not defined.

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โˆ™ 2014-06-01 19:43:12
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Q: Solve 2sinx-sin3x equals 0
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