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Math Help - Parametric differentiation

  1. #1
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    Parametric differentiation

    when x=a sin2\theta (1+cos2\theta)
    y=b cos2\theta (1-cos2\theta ); find dy/dx.
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  2. #2
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    \frac{dy}{dx}= \frac{\frac{dy}{dt}}{\frac{dx}{dt}}
    Can you find dy/dt and dx/dt?
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