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Math Help - even/odd trig functions

  1. #1
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    Post even/odd trig functions

    How can I tell if each of these functions are even or odd?

    f(x) = \sin{x}
    f(x) = \cos{x}
    f(x) = \tan{x}
    f(x) = \sec{x}
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  2. #2
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    Quote Originally Posted by live_laugh_luv27 View Post
    How can I tell if each of these functions are even or odd?

    f(x) = \sin{x}~\color{blue}\text{odd}
    f(x) = \cos{x}~\color{blue}\text{even}
    f(x) = \tan{x}~\color{blue}\text{odd}
    f(x) = \sec{x}~\color{blue}\text{even}
    You may just have to know these.
    We can graph each.
    If the graph is symmetric about the y-axis, the function is even.
    If the graph is symmetric about the origin, the function is odd.
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