What is the fifth derivative of f(x) = sin(2x^3 + 7x^2 - 4x + 1)?
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What is the length of the perpendicular bisector of a side of a triangle if the side length is 10 units and the other two sides have lengths of 8 and 6 units, respectively?
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What is the value of 2 to the power of 5, multiplied by the square root of 16, divided by the cube root of 125?