首页
下列函数中为偶函数的是A.B.y=-C.y=x2D.y=x3+1
试题详情
下列函数中为偶函数的是( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAASCAYAAADG3feYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAE2SURBVEhL7ZUxEoQgDADzLgueY89PqHmILQ+x
4Cm5BIgiwzEHJ15zzlg4Y8iyIQHw4QcAsPt9mDEA9j79Eb0Ziv//kF8KPMKnmuw57K0NTYX8qUmn
00hQFr2QOI2Qf99FSOtcTHIeHklHLof68h0Tx+72FhUotAclorMZ9CzImByt4twMqNFVcqURxD/k
kA5tTpwMfHoue8+kt4qM1gFPk8TPmnXahieLtR3dIbTaOFzJxvFKJll5gqQAXVgchtvWdAWuzRHk
yGR53PKcF0hFBvWNDbNtW8hlFsDF7LEJimuRS80V5AYOlaRmkooK6HEtxi5/fy6GbXJgMBptCqRM
FSVVk04vCTlGks/qZll/JYNsc2iY+zACzqb5ylgjeDcLwmLGIKGYj7MgeV22OWRyJlRt7RHIFyMc
bZ/BEt7bAAAAAElFTkSuQmCC
)
B.y=-
C.y=x
2D.y=x
3+1
相关试题
-
下列函数中为偶函数的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAASCAYAAADG3feYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAE2SURBVEhL7ZUxEoQgDADzLgueY89PqHmILQ+x
4Cm5BIgiwzEHJ15zzlg4Y8iyIQHw4QcAsPt9mDEA9j79Eb0Ziv//kF8KPMKnmuw57K0NTYX8qUmn
00hQFr2QOI2Qf99FSOtcTHIeHklHLof68h0Tx+72FhUotAclorMZ9CzImByt4twMqNFVcqURxD/k
kA5tTpwMfHoue8+kt4qM1gFPk8TPmnXahieLtR3dIbTaOFzJxvFKJll5gqQAXVgchtvWdAWuzRHk
yGR53PKcF0hFBvWNDbNtW8hlFsDF7LEJimuRS80V5AYOlaRmkooK6HEtxi5/fy6GbXJgMBptCqRM
FSVVk04vCTlGks/qZll/JYNsc2iY+zACzqb5ylgjeDcLwmLGIKGYj7MgeV22OWRyJlRt7RHIFyMc
bZ/BEt7bAAAAAElFTkSuQmCC
)
B.y=-
C.y=x2
D.y=x3+1
-
下列函数中为偶函数的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAASCAYAAADG3feYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAE2SURBVEhL7ZUxEoQgDADzLgueY89PqHmILQ+x
4Cm5BIgiwzEHJ15zzlg4Y8iyIQHw4QcAsPt9mDEA9j79Eb0Ziv//kF8KPMKnmuw57K0NTYX8qUmn
00hQFr2QOI2Qf99FSOtcTHIeHklHLof68h0Tx+72FhUotAclorMZ9CzImByt4twMqNFVcqURxD/k
kA5tTpwMfHoue8+kt4qM1gFPk8TPmnXahieLtR3dIbTaOFzJxvFKJll5gqQAXVgchtvWdAWuzRHk
yGR53PKcF0hFBvWNDbNtW8hlFsDF7LEJimuRS80V5AYOlaRmkooK6HEtxi5/fy6GbXJgMBptCqRM
FSVVk04vCTlGks/qZll/JYNsc2iY+zACzqb5ylgjeDcLwmLGIKGYj7MgeV22OWRyJlRt7RHIFyMc
bZ/BEt7bAAAAAElFTkSuQmCC
)
B.y=-
C.y=x2
D.y=x3+1
-
下列函数中为偶函数的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAASCAYAAADG3feYAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAE2SURBVEhL7ZUxEoQgDADzLgueY89PqHmILQ+x
4Cm5BIgiwzEHJ15zzlg4Y8iyIQHw4QcAsPt9mDEA9j79Eb0Ziv//kF8KPMKnmuw57K0NTYX8qUmn
00hQFr2QOI2Qf99FSOtcTHIeHklHLof68h0Tx+72FhUotAclorMZ9CzImByt4twMqNFVcqURxD/k
kA5tTpwMfHoue8+kt4qM1gFPk8TPmnXahieLtR3dIbTaOFzJxvFKJll5gqQAXVgchtvWdAWuzRHk
yGR53PKcF0hFBvWNDbNtW8hlFsDF7LEJimuRS80V5AYOlaRmkooK6HEtxi5/fy6GbXJgMBptCqRM
FSVVk04vCTlGks/qZll/JYNsc2iY+zACzqb5ylgjeDcLwmLGIKGYj7MgeV22OWRyJlRt7RHIFyMc
bZ/BEt7bAAAAAElFTkSuQmCC
)
B.y=-
C.y=x2
D.y=x3+1
-
下列函数中,是偶函数且在(0,+∞)单调递减的是( )
A.y=x3
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACcAAAAqCAYAAAAwPULrAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.y=-x2
D.y=|lgx|
-
下列函数中,既是偶函数,又在区间(0,+∞)上单调递减的是( )
A.y=x3
B.y=x-1
C.y=x2
D.y=x-2
-
下列函数中,既是偶函数,又在区间(0,+∞) 上单调递减的函数是( )
A.y=x-2
B.y=x-1
C.y=x2
D.
-
下列函数中,既是偶函数,又在区间(0,+∞) 上单调递减的函数是( )
A.y=x-2
B.y=x-1
C.y=x2
D.
-
下列函数中,既是偶函数,又在区间(0,+∞) 上单调递减的函数是( )
A.y=x-2
B.y=x-1
C.y=x2
D.
-
下列函数中,既是偶函数,又在区间(0,+∞) 上单调递减的函数是( )
A.y=x-2
B.y=x-1
C.y=x2
D.
-
下列函数中,在区间(0,+∞)上是减函数的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACsAAAAjCAYAAAANDvOtAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAFMSURBVFhH7VgBDoMgDOzL+BPf4TM8had0LQJD
hEjjcJCwxCwmpZzHXVsFXOgHC2HFDfbRaTmDChQad80yF7NWIwDQtQJYT6ZFvcE+Emdr8WZ2CK1b
s6NoXYhZ3xC4zh6XtmdOuptCTNDzP4r2brCjAEjygtWBdmUwtWNue/m9JOPA2IPZyvBgTQb+AYBE
RqbFJKVSlDf7BBmUXcOiKcaeHq3GGMmz9eblnBnYr/scsVoYUbL/sNgA1qFRASxJQteGyWEQ+hOf
wCpiVE9orPg4qXQdRtBTHv8V7I/c33+o8khwVF2TXuXrX11BlaP+vvMaivjelbzCZZQkWfHOJO2W
T5dJY6Bt30wClpuoujX4NGB9y78pm9OAtcRs6+PGpXS9ZqjKRiwBnmm41vvZhkxXm3H+ziwPMiq2
91gZGtPY38FKTnSDlbAliV2K2Q/Be3Sbu0SSyQAAAABJRU5ErkJggg==
)
B.y=
C.y=x2
D.y=1-