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关于x的方程kx2+3x-1=0有实数根,则k的取值范围是A.k≤B.k≥-且k≠0C.k...
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关于x的方程kx
2+3x-1=0有实数根,则k的取值范围是( )
A.k≤
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC+SURBVDhPvVLJEQMhDFNl9OR2aIZSthTFHGY5
Qx5MmOGBR0iyZfBwcAnweDqASFcYGlqVCBQ4+idXH+8I51meBIN0hfwBlEKD8Ydy0DvQFUooZ9K3
HzPAdKvJbLZKjHOYTbaISY7ahZ3YjVKbOStXk2hm0ZLeyuJLpGeJnOD6RuIzw6WNqjQ56jfZwUMK
qou+BWhQ4sOOQakl7uFGIogt7QqgMY/r1pkMsp7iu7TdpA5t2kZv5/ADYE7mD2l+AAh/yg1qVgJH
AAAAAElFTkSuQmCC
)
B.k≥-
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC+SURBVDhPvVLJEQMhDFNl9OR2aIZSthTFHGY5
Qx5MmOGBR0iyZfBwcAnweDqASFcYGlqVCBQ4+idXH+8I51meBIN0hfwBlEKD8Ydy0DvQFUooZ9K3
HzPAdKvJbLZKjHOYTbaISY7ahZ3YjVKbOStXk2hm0ZLeyuJLpGeJnOD6RuIzw6WNqjQ56jfZwUMK
qou+BWhQ4sOOQakl7uFGIogt7QqgMY/r1pkMsp7iu7TdpA5t2kZv5/ADYE7mD2l+AAh/yg1qVgJH
AAAAAElFTkSuQmCC
)
且k≠0
C.k≥-
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC+SURBVDhPvVLJEQMhDFNl9OR2aIZSthTFHGY5
Qx5MmOGBR0iyZfBwcAnweDqASFcYGlqVCBQ4+idXH+8I51meBIN0hfwBlEKD8Ydy0DvQFUooZ9K3
HzPAdKvJbLZKjHOYTbaISY7ahZ3YjVKbOStXk2hm0ZLeyuJLpGeJnOD6RuIzw6WNqjQ56jfZwUMK
qou+BWhQ4sOOQakl7uFGIogt7QqgMY/r1pkMsp7iu7TdpA5t2kZv5/ADYE7mD2l+AAh/yg1qVgJH
AAAAAElFTkSuQmCC
)
D.k>-
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAgAAAAjCAYAAACpZEt+AAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC+SURBVDhPvVLJEQMhDFNl9OR2aIZSthTFHGY5
Qx5MmOGBR0iyZfBwcAnweDqASFcYGlqVCBQ4+idXH+8I51meBIN0hfwBlEKD8Ydy0DvQFUooZ9K3
HzPAdKvJbLZKjHOYTbaISY7ahZ3YjVKbOStXk2hm0ZLeyuJLpGeJnOD6RuIzw6WNqjQ56jfZwUMK
qou+BWhQ4sOOQakl7uFGIogt7QqgMY/r1pkMsp7iu7TdpA5t2kZv5/ADYE7mD2l+AAh/yg1qVgJH
AAAAAElFTkSuQmCC
)
且k≠0
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A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAjCAYAAABhCKGoAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF8SURBVEhL1VZRsoMwCORkuVOuk8t4FI/CSwhJ
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JXzrQHj7EshcxOMmJwjNcdnDh/GyH8evTZAtSwueY7RnabzOphikbSjnjcqgtVBjF6Q1fXSl8FOP
Cqg67Nsrs8hbXAnf9CBHkDt0gs6CzNA6p93vzjy+6P6IgPnQG4eRQQ7i/Iwd9Flz98TEuys9aT1j
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B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAjCAYAAAD17ghaAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF4SURBVFhH7VdBEoMgDMzL+FO+w2d8ik9JIQlI
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WTjeTGsk8aX7b1AjusKfdwFcFs4hdNxcBsCz2aR6Wf+y8OUd5EAGsGBplfOrv1W4GkFMJ81ok9tF
YLTEdbPbo2PCgInLAKYxiiEMxPmzOlmpdludNXcXSDp39KsakGzOBzqdcBfIaSOS1do1M/BeFrwL
BKz9ZFVKWARmvO7MDpH1AoHafgzow1Tc4TXOsgyPX8fV/h++jPbTso9ktdMmMBDdHVym7qpHPgVA
egoqH0T227BD6f1Hg6MQCTlvHhHhVpTHUaTt+BGwBcuurSjHA9D3gPwkVO2bCQBiqJavZtM10Jbs
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)
C.
且k≠0
D.
且k≠0
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已知关于x的方程kx2-3x+2=0有两个实数根,则k的取值范围为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAjCAYAAABhCKGoAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF8SURBVEhL1VZRsoMwCORkuVOuk8t4FI/CSwhJ
gPostuhMO+NHR2VZdlkD+MAPHsDAHwPZCyYABLoybmJEQUw2zJCw7L3yXhJCKsh/g8a1ZVUUK49c
GWWmE8LEdl65YEmAiamFgNT5kB6j83tAhg5T+G6A0HHZXbtHeInyMjpkdzV3ENVlw4+SgOsMwUeN
JXzrQHj7EshcxOMmJwjNcdnDh/GyH8evTZAtSwueY7RnabzOphikbSjnjcqgtVBjF6Q1fXSl8FOP
Cqg67Nsrs8hbXAnf9CBHkDt0gs6CzNA6p93vzjy+6P6IgPnQG4eRQQ7i/Iwd9Flz98TEuys9aT1j
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jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF4SURBVFhH7VdBEoMgDMzL+FO+w2d8ik9JIQlI
UFHagoe2M51OZ9BsNrsbBXr4Aw/Xpx8BsHpyAAT8RVoK2icwsBCCI79K1dU7AudJ/04YwYKmIIX+
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WTjeTGsk8aX7b1AjusKfdwFcFs4hdNxcBsCz2aR6Wf+y8OUd5EAGsGBplfOrv1W4GkFMJ81ok9tF
YLTEdbPbo2PCgInLAKYxiiEMxPmzOlmpdludNXcXSDp39KsakGzOBzqdcBfIaSOS1do1M/BeFrwL
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C.
且k≠0
D.
且k≠0
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已知关于x的方程kx2-3x+2=0有两个实数根,则k的取值范围为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAjCAYAAABhCKGoAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF8SURBVEhL1VZRsoMwCORkuVOuk8t4FI/CSwhJ
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YLTEdbPbo2PCgInLAKYxiiEMxPmzOlmpdludNXcXSDp39KsakGzOBzqdcBfIaSOS1do1M/BeFrwL
BKz9ZFVKWARmvO7MDpH1AoHafgzow1Tc4TXOsgyPX8fV/h++jPbTso9ktdMmMBDdHVym7qpHPgVA
egoqH0T227BD6f1Hg6MQCTlvHhHhVpTHUaTt+BGwBcuurSjHA9D3gPwkVO2bCQBiqJavZtM10Jbs
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)
C.
且k≠0
D.
且k≠0
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已知关于x的方程kx2-3x+2=0有两个实数根,则k的取值范围为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAjCAYAAABhCKGoAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF8SURBVEhL1VZRsoMwCORkuVOuk8t4FI/CSwhJ
gPostuhMO+NHR2VZdlkD+MAPHsDAHwPZCyYABLoybmJEQUw2zJCw7L3yXhJCKsh/g8a1ZVUUK49c
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Cqg67Nsrs8hbXAnf9CBHkDt0gs6CzNA6p93vzjy+6P6IgPnQG4eRQQ7i/Iwd9Flz98TEuys9aT1j
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)
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jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF4SURBVFhH7VdBEoMgDMzL+FO+w2d8ik9JIQlI
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YLTEdbPbo2PCgInLAKYxiiEMxPmzOlmpdludNXcXSDp39KsakGzOBzqdcBfIaSOS1do1M/BeFrwL
BKz9ZFVKWARmvO7MDpH1AoHafgzow1Tc4TXOsgyPX8fV/h++jPbTso9ktdMmMBDdHVym7qpHPgVA
egoqH0T227BD6f1Hg6MQCTlvHhHhVpTHUaTt+BGwBcuurSjHA9D3gPwkVO2bCQBiqJavZtM10Jbs
HAYaGP4AXh55PPy7J9SVAAAAAElFTkSuQmCC
)
C.
且k≠0
D.
且k≠0
-
已知关于x的方程kx2-3x+2=0有两个实数根,则k的取值范围为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAjCAYAAABhCKGoAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF8SURBVEhL1VZRsoMwCORkuVOuk8t4FI/CSwhJ
gPostuhMO+NHR2VZdlkD+MAPHsDAHwPZCyYABLoybmJEQUw2zJCw7L3yXhJCKsh/g8a1ZVUUK49c
GWWmE8LEdl65YEmAiamFgNT5kB6j83tAhg5T+G6A0HHZXbtHeInyMjpkdzV3ENVlw4+SgOsMwUeN
JXzrQHj7EshcxOMmJwjNcdnDh/GyH8evTZAtSwueY7RnabzOphikbSjnjcqgtVBjF6Q1fXSl8FOP
Cqg67Nsrs8hbXAnf9CBHkDt0gs6CzNA6p93vzjy+6P6IgPnQG4eRQQ7i/Iwd9Flz98TEuys9aT1j
BG3d/mIfSdWiyE/PVSXW82Ctu8bhZcTFlCv1u46oZ3f9Jy5pqL8fNwWk/vxalzqY+LSgFGBnWgnC
QOQq2LSJBckZc0sHswZBIE345ageoCs5YkDIvtK22ggxIHzOmrlmMjAIhI4r4ph6eRl9Fj4PyO9r
vK0QN64TqEdA/gDh9nHtZjrs7AAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAjCAYAAAD17ghaAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF4SURBVFhH7VdBEoMgDMzL+FO+w2d8ik9JIQlI
UFHagoe2M51OZ9BsNrsbBXr4Aw/Xpx8BsHpyAAT8RVoK2icwsBCCI79K1dU7AudJ/04YwYKmIIX+
MTCBSsNwBuqOAwfkHZBTSoYDCJzz/FPH8wGkuWcRihinjaDOmeEiFKudTHY3DlIXRKXyhZtdehOy
WTjeTGsk8aX7b1AjusKfdwFcFs4hdNxcBsCz2aR6Wf+y8OUd5EAGsGBplfOrv1W4GkFMJ81ok9tF
YLTEdbPbo2PCgInLAKYxiiEMxPmzOlmpdludNXcXSDp39KsakGzOBzqdcBfIaSOS1do1M/BeFrwL
BKz9ZFVKWARmvO7MDpH1AoHafgzow1Tc4TXOsgyPX8fV/h++jPbTso9ktdMmMBDdHVym7qpHPgVA
egoqH0T227BD6f1Hg6MQCTlvHhHhVpTHUaTt+BGwBcuurSjHA9D3gPwkVO2bCQBiqJavZtM10Jbs
HAYaGP4AXh55PPy7J9SVAAAAAElFTkSuQmCC
)
C.
且k≠0
D.
且k≠0
-
已知关于x的方程kx2-3x+2=0有两个实数根,则k的取值范围为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABkAAAAjCAYAAABhCKGoAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF8SURBVEhL1VZRsoMwCORkuVOuk8t4FI/CSwhJ
gPostuhMO+NHR2VZdlkD+MAPHsDAHwPZCyYABLoybmJEQUw2zJCw7L3yXhJCKsh/g8a1ZVUUK49c
GWWmE8LEdl65YEmAiamFgNT5kB6j83tAhg5T+G6A0HHZXbtHeInyMjpkdzV3ENVlw4+SgOsMwUeN
JXzrQHj7EshcxOMmJwjNcdnDh/GyH8evTZAtSwueY7RnabzOphikbSjnjcqgtVBjF6Q1fXSl8FOP
Cqg67Nsrs8hbXAnf9CBHkDt0gs6CzNA6p93vzjy+6P6IgPnQG4eRQQ7i/Iwd9Flz98TEuys9aT1j
BG3d/mIfSdWiyE/PVSXW82Ctu8bhZcTFlCv1u46oZ3f9Jy5pqL8fNwWk/vxalzqY+LSgFGBnWgnC
QOQq2LSJBckZc0sHswZBIE345ageoCs5YkDIvtK22ggxIHzOmrlmMjAIhI4r4ph6eRl9Fj4PyO9r
vK0QN64TqEdA/gDh9nHtZjrs7AAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAjCAYAAAD17ghaAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF4SURBVFhH7VdBEoMgDMzL+FO+w2d8ik9JIQlI
UFHagoe2M51OZ9BsNrsbBXr4Aw/Xpx8BsHpyAAT8RVoK2icwsBCCI79K1dU7AudJ/04YwYKmIIX+
MTCBSsNwBuqOAwfkHZBTSoYDCJzz/FPH8wGkuWcRihinjaDOmeEiFKudTHY3DlIXRKXyhZtdehOy
WTjeTGsk8aX7b1AjusKfdwFcFs4hdNxcBsCz2aR6Wf+y8OUd5EAGsGBplfOrv1W4GkFMJ81ok9tF
YLTEdbPbo2PCgInLAKYxiiEMxPmzOlmpdludNXcXSDp39KsakGzOBzqdcBfIaSOS1do1M/BeFrwL
BKz9ZFVKWARmvO7MDpH1AoHafgzow1Tc4TXOsgyPX8fV/h++jPbTso9ktdMmMBDdHVym7qpHPgVA
egoqH0T227BD6f1Hg6MQCTlvHhHhVpTHUaTt+BGwBcuurSjHA9D3gPwkVO2bCQBiqJavZtM10Jbs
HAYaGP4AXh55PPy7J9SVAAAAAElFTkSuQmCC
)
C.
且k≠0
D.
且k≠0