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A curve is described parametrically by \[(x,y) = (2 \cos t - \sin t, 4 \sin t).\]The graph of the curve can be expressed in the form \[ax^2 + bxy + cy^2 = 1.\]Enter the ordered triple $(a,b,c).$

 Jul 22, 2021
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(a,b,c) = (1,-3,7).

 Jul 23, 2021

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