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Math Help - equivalent cosine function

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    equivalent cosine function

    Determine an equivalent cosine function for each sine function.
    y=2sin4(x+pi) y=-sin2(x+pi/6)

    Thanks!
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  2. #2
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    Quote Originally Posted by johett View Post
    Determine an equivalent cosine function for each sine function.
    y=2sin4(x+pi) y=-sin2(x+pi/6)

    Thanks!
    Cosine is just the sine function, but shifted over by \frac{\pi}{2}
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