f(x)f(y) = f(x + y) + xy, find all f: ℝ → ℝ
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A very interesting differential equation.
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Integrate x^-x dx
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Le coup divin de Bobby Fischer fait s'effondrer le monde entier des échecs ! | « Le jeu du siècle »
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Germany’s Far-Right Comeback | NYT Opinion
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Find all non-negative integer-valued function s.t. f(a² - b²) = f(a)² - f(b)² ∀a≥b
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Can you solve this Cambridge Entrance Exam Question?
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THIS SHOULD NOT HAPPEN AGAIN! [MIT Integration Bee 2025]
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