Math question: What is the Pythagorean Theorem used for? Answer choices: a) Finding the area of a circle, b) Determining the sum of angles in a triangle, c) Calculating the perimeter of a rectangle, d) Finding the length of the hypotenuse in a right triangle?
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What is the definite integral of 3x^2 + 2x + 1 from 0 to 5?
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What is the maximum value of the cosine function given by f(x) = cos x?