x—>∞,f(x)=x*sin(360/x)

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x—>∞,f(x)=x*sin(360/x)x—>∞,f(x)=x*sin(360/x)x—>∞,f(x)=x*sin(360/x)f(x)=360*sin(360/x)/(360/x)令a=360/

x—>∞,f(x)=x*sin(360/x)
x—>∞,f(x)=x*sin(360/x)

x—>∞,f(x)=x*sin(360/x)
f(x)=360*sin(360/x)/(360/x)
令a=360/x
x—>∞则a—>0
所以极限=360sina/a=360×1=360

求极限吗?