What is the equation of an ellipse centered at (3, -1), with a major axis length of 6 and a minor axis length of 4?
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What is the domain of the reciprocal function f(x) = 1/x? Explain the reason using the characteristics of reciprocals and rational functions.
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What is the resulting vector when multiplying vector A with magnitude 3 and direction 45 degrees by vector B with magnitude 6 and direction 120 degrees?