What is the equation for an ellipse with center (h,k), major axis length 2a, and minor axis length 2b?
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Math Question: Given a triangle ABC where AD is the angle bisector of angle A, find the length of BD if AB = 12 cm, AC = 9 cm, and /_\BAC = 30 degrees.
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What is the resultant of adding vector A (2i - 3j) and vector B (-5i + 4j)?