What is the derivative of f(x) = 3x^2 + 2cos(x) - 5ln(x) + 4sqrt(x)?
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What is the equation of the line passing through the points (3,5) and (7,11)?
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Find the equation of an ellipse with a major axis length of 8 units, a minor axis length of 6 units, centered at the origin, and aligned with the x-axis. (