②A={x|00<x<900.B={y|0<y<1.對(duì)應(yīng)法則f:x→y = sinx.x∈A.y∈B,③A={x|x∈R}.B={y|y≥0}.對(duì)應(yīng)法則f:x→y = x2.x∈A.y∈B.(A)0 (B)1 (C)2 (D)3 查看更多

 

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下列對(duì)應(yīng)中是集合A到集合B的映射的個(gè)數(shù)為

A={1,3,5,7,9},B={2,4,6,8,10},對(duì)應(yīng)法則fxy = x+1,xAyB;

A={x|00x<900,B={y|0<y<1,對(duì)應(yīng)法則fxy = sinxxA,yB;

A={x|xR},B={y|y≥0},對(duì)應(yīng)法則fxy = x2,xA,yB.

A.0          B.1              C.2              D.3

 

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下列對(duì)應(yīng)中是集合A到集合B的映射的個(gè)數(shù)為
A={1,3,5,7,9},B={2,4,6,8,10},對(duì)應(yīng)法則fxy = x+1,xA,yB;
A={x|00x<900,B={y|0<y<1,對(duì)應(yīng)法則fxy = sinx,xA,yB
A={x|xR},B={y|y≥0},對(duì)應(yīng)法則fxy = x2xA,yB.
A.0         B.1             C.2             D.3

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下列對(duì)應(yīng)中是集合A到集合B的映射的個(gè)數(shù)為
A={1,3,5,7,9},B={2,4,6,8,10},對(duì)應(yīng)法則fxy = x+1,xA,yB
A={x|00x<900,B={y|0<y<1,對(duì)應(yīng)法則fxy = sinxxA,yB;
A={x|xR},B={y|y≥0},對(duì)應(yīng)法則fxy = x2,xAyB.
A.0         B.1             C.2             D.3

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