Question: What is the maximum value of the sine function f(x) = sin x within the interval [-∞, ∞]?
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Question: In a triangle, if the sum of the measures of two angles is 90° and the lengths of the sides are 6 cm, 8 cm, and 10 cm, what type of triangle is it?
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What is the equation of a parabola with its vertex at (2, 4) and passing through the point (1, -1)?