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下列命题中的真命题是A.B.∀x∈(0,π),sinx>cosC.∃x∈(-∞,0),2x...
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下列命题中的真命题是( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJwAAAAjCAYAAABhJGPtAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
B.∀x∈(0,π),sinx>cos
C.∃x∈(-∞,0),2
x<3
xD.∀x∈(0,+∞),e
x>x+1
相关试题
-
下列命题中,真命题是( )
A.∃x∈R,使得sinx+cosx=1.5
B.
,使得sinx>cos
C.∃x∈R,使得x2+x=-1
D.∀x∈(0,+∞),使得ex>1+
-
下列命题中,真命题是( )
A.∃x∈R,使得sinx+cosx=2
B.∀x∈(0,π),有sinx>cos
C.∃x∈R,使得x2+x=-2
D.∀x∈(0,+∞),有ex>1+
-
下列命题中,真命题是( )
A.∃x∈R,使得sinx+cosx=2
B.∀x∈(0,π),有sinx>cos
C.∃x∈R,使得x2+x=-2
D.∀x∈(0,+∞),有ex>1+
-
下列命题中的真命题是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJwAAAAjCAYAAABhJGPtAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
B.∀x∈(0,π),sinx>cos
C.∃x∈(-∞,0),2x<3x
D.∀x∈(0,+∞),ex>x+1
-
下列命题中的真命题是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJQAAAAjCAYAAABy8yMZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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WFCrK6Az/n9/VvzvZLjZMAAAAABJRU5ErkJggg==
)
B.∀x∈(0,π),sinx>cos
C.∃x∈(-∞,0),2x<3x
D.∀x∈(0,+∞),ex>x+1
-
下列命题中的真命题是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJwAAAAjCAYAAABhJGPtAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
B.∀x∈(0,π),sinx>cos
C.∃x∈(-∞,0),2x<3x
D.∀x∈(0,+∞),ex>x+1
-
下列命题中的真命题是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJQAAAAjCAYAAABy8yMZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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ICgwEWP+AH9W/O+KWKuIAAAAAElFTkSuQmCC
)
B.∀x∈(0,π),sinx>cos
C.∃x∈(-∞,0),2x<3x
D.∀x∈(0,+∞),ex>x+1
-
下列命题中的真命题是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJQAAAAjCAYAAABy8yMZAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAN6SURBVHhe7VqLjawwDKQymrkK0HVDM5RCKXn5
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)
B.∀x∈(0,π),sinx>cos
C.∃x∈(-∞,0),2x<3x
D.∀x∈(0,+∞),ex>x+1
-
下列命题中的真命题是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAJwAAAAjCAYAAABhJGPtAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAA35JREFU
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)
B.∀x∈(0,π),sinx>cos
C.∃x∈(-∞,0),2x<3x
D.∀x∈(0,+∞),ex>x+1
-
下列命题中,真命题是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAKwAAAAjCAYAAAAJ1+HVAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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)
B.∀x∈(0,π),sinx>cos
C.∃x∈R,x2+x=-1
D.∀x∈(0,+∞),ex>1+