Use a Double- or Half-Angle Formula to solve the equation in the interval [0, 2Γβ¬). (Enter your answers as a comma-separated list.) sin(2ΓΒΈ) + sin(ΓΒΈ) = 0 ΓΒΈ =
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Step 1
If sin(π) = 0, then π = 0 or π. If 2cos(π) + 1 = 0, then cos(π) = -1/2, which has solutions π = 2π/3 and 4π/3. Show moreβ¦
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