If \( a_{1}, a_{2}, \ldots, a_{n} \) are fixed real numbers and a function \( f \) is defined by...

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If \( a_{1}, a_{2}, \ldots, a_{n} \) are fixed real numbers and a function \( f \) is defined by \( f(x)=\left(x-a_{1}\right)\left(x-a_{2}\right) \ldots\left(x-a_{n}\right) \), find \( \operatorname{Lt}_{x \rightarrow a_{1}} f(x) \).
For some \( a \neq a_{1}, a_{2^{\prime}} \ldots, a_{n^{\prime}} \) compute \( \operatorname{Lt}_{x \rightarrow a} f(x) \)
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