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下列四组函数中,表示同一个函数的是A.与B.与y=|x|C.与D.f(x)=x2-2x-1...
试题详情
下列四组函数中,表示同一个函数的是( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADwAAAAbCAYAAAAgVez8AAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
与
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAASCAYAAADrL9giAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADwAAAAZCAYAAABtnU33AAAAAXNSR0IArs4c6QAAAARnQU1BAACx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==
)
与y=|x|
C.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFgAAAASCAYAAADfVhk+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
与
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAATCAYAAAD21tHiAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.f(x)=x
2-2x-1与g(t)=t
2-2t-1
相关试题
-
下列四组函数中,表示同一个函数的是( )
A.
与![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAASCAYAAADrL9giAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
与y=|x|
C.
与![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAATCAYAAAD21tHiAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.f(x)=x2-2x-1与g(t)=t2-2t-1
-
下列四组函数中,表示同一个函数的是( )
A.
与![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAASCAYAAADrL9giAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
与y=|x|
C.
与![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAATCAYAAAD21tHiAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.f(x)=x2-2x-1与g(t)=t2-2t-1
-
下列四组函数中,表示同一个函数的是( )
A.
与![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAASCAYAAADrL9giAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
与y=|x|
C.
与![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAATCAYAAAD21tHiAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.f(x)=x2-2x-1与g(t)=t2-2t-1
-
下列四组函数中,表示同一个函数的是( )
A.
与![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAEAAAAASCAYAAADrL9giAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
与y=|x|
C.
与![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF8AAAATCAYAAAD21tHiAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.f(x)=x2-2x-1与g(t)=t2-2t-1
-
下列各组函数中,表示同一函数的是( )
A.f(x)与g(x)=f(x+1)
B.f(x)=x2-2x-1与g(t)=t2-2t-1
C.f(x)=
与g(x)=![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAlCAYAAABVjVnMAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAE4SURBVFhH7ZcxDoMwDEVzLoYchz03Yc5BsuYg
DBzFdUyAAjFtg11VFKSqEoOf/7fjGAOFxxgDmr+ENBy49F7y3Q0mN1N9xZ7BgzUW/LCOqGt1dLlJ
tcAIcJHzKIKrUTx4S1nb7FV0eNSsh5VzGmDSkeqEsIhJFJWpgVGft4vqlAsp5wbNKjvO6tDmAO1c
pFJXJxBbxxrFIQQCdo2BpuuZ4xRRMdaaI9eAZ5mkfFS9VRydg5jrPOC/33bwKTACW6xZUj2Bp44e
hY513nX00aSh4bH0wrNhqwHSdw2YppOdXExiu8mVVIuOzHfB4rP6E7DYBXEQCF3V3TZK8cnVb6gr
MdhrUdMJVvH/dfU1FF9z5zo8k5o7lwaYYr7audTAP7tz1SgW2blqwCI71ynwvXMpX9S6n6kHyT8A
GTj5ZDAg+6MAAAAASUVORK5CYII=
)
D.f(x)=
与个g(x)=
-
下列各组函数是同一函数的是________.
①
与
②f(x)=x与
③f(x)=x与
④f(x)=x2-2x-1与g(t)=t2-2t-1.
-
下列各组函数是同一函数的是( )
①
与
;
②f(x)=x与
;
③f(x)=x与
;
④f(x)=x2-2x-1与g(t)=t2-2t-1.
A.①②
B.①③
C.③④
D.①④
-
下列各组函数是同一函数的是( )
①
与
;
②f(x)=x与
;
③f(x)=x与
;
④f(x)=x2-2x-1与g(t)=t2-2t-1.
A.①②
B.①③
C.③④
D.①④
-
下列各组函数是同一函数的是( )
①
与
;
②f(x)=x与
;
③f(x)=x与
;
④f(x)=x2-2x-1与g(t)=t2-2t-1.
A.①②
B.①③
C.③④
D.①④
-
下列各组函数是同一函数的是( )
①
与
;
②f(x)=x与
;
③f(x)=x与
;
④f(x)=x2-2x-1与g(t)=t2-2t-1.
A.①②
B.①③
C.③④
D.①④