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Math Help - finding where the two functions intersect

  1. #1
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    finding where the two functions intersect

    im trying to find the tangets of the lines

    x=2sin2t
    and
    y=3sint

    before i can do that i need to find where they intersect. how do i find the intersection points? im lost
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  2. #2
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    sorry its where the curve crosses itslef.
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  3. #3
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    Quote Originally Posted by johnnyc418 View Post
    im trying to find the tangets of the lines

    x=2sin2t
    and
    y=3sint

    before i can do that i need to find where they intersect. how do i find the intersection points? im lost
    understand what you have is a single parametric curve called a lemniscate ... and it intersects itself at the origin.
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  4. #4
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    thank you

    what if its something like

    x=t-t
    and
    y=t-3t-1
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  5. #5
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    Quote Originally Posted by johnnyc418 View Post
    thank you

    what if its something like

    x=t-t
    and
    y=t-3t-1
    this parametric curve never intersects itself.
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