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Let $g_{n}(x)=\frac{n x}{1+n^{2} x^{2}}, x \in[0, \infty) .$ Which of

the following is true as $n \rightarrow \infty$ ?

1. $g_{n} \rightarrow 0$ pointwise but not uniformly

2. $g_{n} \rightarrow 0$ uniformly

3. $g_{n}(x) \rightarrow x \quad \forall x \in[0, \infty)$

4. $g_{n}(x) \rightarrow \frac{x}{1+x^{2}} \quad \forall x \in[0, \infty)$
in Real Analysis by Expert (2.4k points) | 15 views

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