Math question: For the cosine function f(x) = cos x, what is the amplitude, period, and range of the graph?
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What rule states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, the triangles are congruent?
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What is the domain of the trigonometric function f(x) = cos(x) within the interval [-π/2, 3π/2]?