What is the simplified form of √(81) + √(16) + √(25) + √(36) - √(64)?
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What is the area between the hyperbola y=3cosh(x) and the x-axis from x=0 to x=5?
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What is the equation of an ellipse centered at (h,k), with a major axis of length 2a parallel to the x-axis and a minor axis of length 2b parallel to the y-axis?