设f(x)=在x=0处连续,则a=________,b=________.

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问题 设f(x)=在x=0处连续,则a=________,b=________.

选项

答案a=1,b=一1;

解析 f(0+0)==3+2b,f(0)=1,
f(0一0)=
因为f(x)在x=0处连续,所以f(0+0)=f(0)=f(0—0),故a=1,b=一1.
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