请问怎样求极限lim(x→无穷)n·sin(x/n)?

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请问怎样求极限lim(x→无穷)n·sin(x/n)?
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请问怎样求极限lim(x→无穷)n·sin(x/n)?
请问怎样求极限lim(x→无穷)n·sin(x/n)?

请问怎样求极限lim(x→无穷)n·sin(x/n)?
因为 sinx/x在(x→无穷)时得1
所以 原试=lim [sin(x/n)] *x /(x/n)
=x 既无穷 (符号打不出)