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? asked in Science & MathematicsMathematics · 6 years ago

Find all solutions to 2sin^2(x)=sin(x)?

Please show work, thanks :)

2 Answers

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  • ?
    Lv 7
    6 years ago

    sinx(2sinx - 1) = 0 by a little algebra. Now use the zero-factor law.

    sinx = 0 ⇒ x = kπ, k ∈ ℤ

    sinx = 1/2 ⇒ x = π/6 + 2kπ, 5π/6 + 2kπ, k ∈ ℤ

  • alex
    Lv 7
    6 years ago

    sinx=0--->x=..

    sinx=1/2--->x=..

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