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Math Help - trigonometric functions

  1. #1
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    trigonometric functions

    Can someone help me to solve a trigonometric function.To review this function in points

    y=3sin(2x+π/4)
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  2. #2
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    Re: trigonometric functions

    Solve for what?
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  3. #3
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    Re: trigonometric functions

    Hello...When you say solve you need to give the function a value.

    e.g. If you want to find where the function equals 1.5 then you would be solving 3sin(2x + π/4) = 1.5

    Otherwise, you would just have a sketch of the function.

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  4. #4
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    Re: trigonometric functions

    To rewiew that function in points foe example:
    1.)domain
    2.)0 of function
    the period etc
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    Re: trigonometric functions

    My mistake sorry .I need a sketch of the function and you know extreme values of the function when it is growing
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    Re: trigonometric functions

    I haven't been clear i need a sketch of this function y=3sin(2x+π/4).I don't get how to know when it is growing, what period does it have extreme values .Thank you for your time
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  7. #7
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    Re: trigonometric functions

    Quote Originally Posted by zotikamaliqi View Post
    I haven't been clear i need a sketch of this function y=3sin(2x+π/4).I don't get how to know when it is growing, what period does it have extreme values .Thank you for your time
    Use the derivative y', this gives you the function for were y is growing and decreasing. You also use the y' to calculate the extremevalues.
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