SOLUTION: Use a Double-or Half-Angle Formula to solve the equation in the interval [0,2π).
sin2θ+cosθ=0
Please help. I do not understand how the book is explaining thi
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Question 859610: Use a Double-or Half-Angle Formula to solve the equation in the interval [0,2π).
sin2θ+cosθ=0
Please help. I do not understand how the book is explaining this.
Answer by richard1234(7193) (Show Source): You can put this solution on YOUR website!
Substitute and factor out cos theta and solve.
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