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Math Help - polar equations

  1. #1
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    polar equations

    x 2nd power = 6y

    convert each rectangular equation to a polar equation
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  2. #2
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    Quote Originally Posted by scrappy View Post
    x 2nd power = 6y

    convert each rectangular equation to a polar equation
    x = r cos \theta
    y = r sin \theta

    So
    (r cos \theta)^2 = 6 r sin \theta

    r^2 cos^2 \theta = 6 r sin \theta

    r = \frac{6 sin \theta}{cos^2 \theta}, r \neq 0

    -Dan
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