What is the equation of an ellipse with a major axis on the x-axis, a minor axis on the y-axis, center at (h, k), and semi-major axis a and semi-minor axis b?
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Math question: Find the fourth derivative of f(x) = 3x^4 - 5x^3 + 2x^2 - 8x + 11.
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What is the area of a triangle with a base of 8cm and a height of 10cm?