What is the resultant displacement when a vector of magnitude 30 units at an angle of 45 degrees is added to a vector of magnitude 20 units at an angle of 135 degrees?
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What is the equation of an ellipse with a major axis of length 'a' and a minor axis of length 'b'?
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Math question: Is there a solution for the equation x^n + y^n = z^n where n > 2, x, y, z are non-zero integers?