as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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provide an example of a limit of a function at a point.
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for example, the limit of the function f(x) = x^2 at x = 0 is 0 because as x approaches 0, x^2 approaches 0.
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