導(dǎo)函數(shù)y=f′(x)的圖象如圖所示,下列說(shuō)法正確的個(gè)數(shù)是( )
①導(dǎo)函數(shù)y=f′(x)在x=32處有極小值;
②函數(shù)f(x)在x=-1處有極大值;
③函數(shù)f(x)在[-1,32]上是減函數(shù);
④函數(shù)f(x)在[-2,-1]上是增函數(shù).
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【答案】B
【解答】
【點(diǎn)評(píng)】
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發(fā)布:2024/7/21 8:0:9組卷:59引用:4難度:0.7
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