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Math Help - Solving triq equations

  1. #1
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    Solving triq equations

    Hello

    I need help solving trig equations:
    Solutions to cos^2 x = \frac{3}{4} in the domain 0 \leq x \leq 2\pi

    Thanks!!
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  2. #2
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    Quote Originally Posted by auonline View Post
    Hello

    I need help solving trig equations:
    Solutions to cos^2 x = \frac{3}{4} in the domain 0 \leq x \leq 2\pi

    Thanks!!
    \cos{x} = \pm \frac{\sqrt{3}}{2}

    check out the unit circle to find the solutions for x ...

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