Math question: What is the equation of an ellipse with a major axis of 8 and a minor axis of 6?
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Math question: In triangle ABC, angle A measures 60 degrees. If the angle bisector of angle A intersects BC at point D, and BD measures 5 units, what is the length of DC?
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What is the vertex form of a parabola function? Show the steps to convert the general form to vertex form.