What is the value of c in the constant function f(x) = c if f(x) = 7 for all x?
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Question: What is the derivative of the function f(x) = ∫[a,x] (ln(t))^2 dt, where a is a constant?
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Math question: In a game, Player A moves 20 units north and 30 units east, while Player B moves 40 units south and 15 units west. What is the net displacement (magnitude and direction) between them?