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Math Help - solve trigometric equation

  1. #1
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    solve trigometric equation

    Cos x = -1

    Find x: 0 less than equal to x < 2Pi. I got Pi. Is that the only answer?
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  2. #2
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    Hello, Nimmy!

    cos x = -1
    Find x . 0 ≤ x < 2π

    I got x = π. .Is that the only answer?

    Yes . . . Good work!

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