Question: What is the area of a circle with a radius of 3 units? What is its circumference? What is the perimeter of a rectangle with length 5 units and width 8 units? What is the area of a parallelogram with base 6 units and height 4 units?
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What is the sum of the first 10 terms of the arithmetic sequence 3, 6, 9, ...?
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What is the derivative of sin(x)*cos(2x) - 3tan(x) + 2sec^2(x)?