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Math Help - parametric equation

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    parametric equation

    parametric equations
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  2. #2
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    Quote Originally Posted by carlasader View Post
    parametric equations
    (a) Use \frac{dx}{dy} = \frac{dx/dt}{dy/dt}.

    (b) Get the value of x and y at t = pi/6 => point on normal. Gradient: m = -\frac{dx}{dy} evaluated at t = pi/6 (why?). And you know how to get the equation of a line from a gradient and a known point, right?
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