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(2002•哈尔滨)方程组的解是A.B.C.或D.或
试题详情
(2002•哈尔滨)方程组
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAGMAAAAwCAYAAAAFIcTMAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
的解是( )
A.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
或
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
或
相关试题
-
(2002•哈尔滨)方程组
的解是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.
或![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAILSURBVFhH7Zi9kcMgEIXp4sq4wDmdKHEHlOFE
BVCFE8U04cQRqbvYY7HA4k8WaDXGM+cZj8c/wMd7C+bB4AsebI1xHAa4dzCJLOTjNgFjDMZrD4gA
CeRHAJWwotgnl6Aj9yLIB5x/f+A0jE0m+4HcgCuvfgAtgQs1v1UgsI1///w4gPyEilqpQDkteaJm
AHm/jlby6fZIlXSWeDvmWWfsabLBNcJx1pRchbSdaJCcg9QIKMCZtAsqaqwEg4gxtPs9pMFEOwqA
TTW5hAzq8/XFdrtdG+yI2mLvUt6dakhllOQMLac0GUCJcp9VkGg11ouvG1Pkcf20oLt+fduo382Q
WG/cyedWOgEhTjit5dD2zZAtClG1+Yc8RMnpcrb10cfZp7BPjsPJQvb28ETucJH93/4w9Qx57+qQ
G2vCnIK91eES1CrpDha9gvqa7Bl0sZT3RYcj11aw33zFPrnl0HukYqW+O/vvxnhCEB/WlNwbH57R
5GDIXaVgYomQap+S/nC6zDd4+CXJO8ZmgTcXFHZjCIvyjZLptUitoq98QwFpkrYIII09i0TWVJNB
niGDfBW2NiruvSDIZ5xFnjK2VG5Bi5naQifOtSQ1OXfCjYKCZMHE1Uti9zNzl65ZahdM+vsNkO5s
eb5MxfEoVnPtZJJAUzpklPaw2gFbfp9NXTlQdsD9z1bgYjTsKVb8AUukl/tavfnmAAAAAElFTkSu
QmCC
)
D.
或
-
(2002•哈尔滨)方程组
的解是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
C.
或![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACkAAAAoCAYAAABjPNNTAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
D.
或
-
(2002•哈尔滨)解方程:
-8x2+12=0
-
(2002•哈尔滨)解方程:
-8x2+12=0
-
(2002•哈尔滨)解方程:
-8x2+12=0
-
(2002•哈尔滨)解方程:
-8x2+12=0
-
(2002•哈尔滨)解方程:
-8x2+12=0
-
(2002•哈尔滨)解方程:
-8x2+12=0
-
(2002•哈尔滨)如图,△ABC内接于⊙O,BC=4,S△ABC=6
,∠B为锐角,且关于x的方程x2-4xcosB+1=0有两个相等的实数根.D是劣弧
上任一点(点D不与点A、C重合),DE平分∠ADC,交⊙O于点E,交AC于点F.
(1)求∠B的度数;
(2)求CE的长;
(3)求证:DA、DC的长是方程y2-DE•y+DE•DF=0的两个实数根.
-
(2002•哈尔滨)如图,△ABC内接于⊙O,BC=4,S△ABC=6
,∠B为锐角,且关于x的方程x2-4xcosB+1=0有两个相等的实数根.D是劣弧
上任一点(点D不与点A、C重合),DE平分∠ADC,交⊙O于点E,交AC于点F.
(1)求∠B的度数;
(2)求CE的长;
(3)求证:DA、DC的长是方程y2-DE•y+DE•DF=0的两个实数根.