Question: Consider the constant function f(x)=c, where c is a fixed real number. If f(x) is constant for all real values of x, what is the value of f(3) when f(7)=4?
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What is the maximum value that the cosine function can reach in the interval [0, π]?
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What are the solutions to the cubic equation x^3 + 2x^2 - 5x + 2 = 0?