Question: Find the radius of a circle with equation x^2 + y^2 = 25.
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Math question: What is the limit as x approaches infinity of (5x^2 + 3x - 2) / (2x^2 - 7x + 1)?
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Question: What is the resultant displacement when a vector of magnitude 20 units is added to another vector of magnitude 12 units, given that the two vectors have an angle of 45 degrees between them? (