高中数学代数与函数一函数练习题59
题目内容

已知函数f(x)=sin x- http://picflow.koolearn.com/upload/2014-10/29/5f0d0513-50d0-4bcf-b980-b7d6ebec276e/paper.files/image042.pngx(x∈[0,π]),那么下列结论正确的是( )

2021-08-03

A.f(x)在http://picflow.koolearn.com/upload/2014-10/29/5f0d0513-50d0-4bcf-b980-b7d6ebec276e/paper.files/image043.png上是增函数

B.f(x)在http://picflow.koolearn.com/upload/2014-10/29/5f0d0513-50d0-4bcf-b980-b7d6ebec276e/paper.files/image044.png上是减函数

C.?x∈http://picflow.koolearn.com/upload/2014-10/29/5f0d0513-50d0-4bcf-b980-b7d6ebec276e/paper.files/image045.pnghttp://picflow.koolearn.com/upload/2014-10/29/5f0d0513-50d0-4bcf-b980-b7d6ebec276e/paper.files/image046.png

D.?x∈http://picflow.koolearn.com/upload/2014-10/29/5f0d0513-50d0-4bcf-b980-b7d6ebec276e/paper.files/image045.pnghttp://picflow.koolearn.com/upload/2014-10/29/5f0d0513-50d0-4bcf-b980-b7d6ebec276e/paper.files/image047.png

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