What is the cosine of the angle formed by (3, 4) on the unit circle?
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Math question: What is the maximum value of the function f(x) = x^2 - 5x + 8 over the interval [-3, 7]?
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What is the congruence rule for proving two triangles are congruent if two angles and the included side of one triangle are congruent to two angles and the included side of another triangle?