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fc3857

  • 2 years ago

cos^2(x) + 2 cos x + 1 = 0

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  1. fc3857
    • 2 years ago
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  2. ucreategames
    • 2 years ago
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    http://www.wolframalpha.com/input/?i=cos^2%28x%29+%2B+2+cos+x+%2B+1+%3D+0

  3. fc3857
    • 2 years ago
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    I still don't completely understand.

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