1. Find the equation of an ellipse C(0,0), one vertex (3,0) one end of minor axis (0,2). 2. Find the equation of an ellipse with foci at (-1,-1) and (-1,7) and the semi major axis of length 8 units. 3. Find the equation of the tangent line to the ellipse 4x 2 +9y 2 =72 at the point (3,2).

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