Question: Find the equation of a hyperbola with center (2, -3), vertices at (4, -3) and (0, -3), and a distance of 6 units from the center to the foci.
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What is the value, in radians, of the acute angle between two vectors with magnitudes 5 and 7, and a dot product of 17
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What is the limit as x approaches 0 of (sin x) / x?