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已知x∈R,i为虚数单位,若为纯虚数,则x的值为A.1B.-1C.2D.-2
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已知x∈R,i为虚数单位,若
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADMAAAAjCAYAAAA5dzKxAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
为纯虚数,则x的值为( )
A.1
B.-1
C.2
D.-2
相关试题
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已知i是虚数单位,
是纯虚数,则实数a等于( )
A.-1
B.1
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
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)
D.-
-
已知x∈R,i为虚数单位,若
为纯虚数,则x的值为( )
A.1
B.-1
C.2
D.-2
-
已知i是虚数单位,m∈R,且
是纯虚数,则
等于( )
A.1
B.-1
C.i
D.-i
-
已知i是虚数单位,
是纯虚数,则实数a等于( )
A.-1
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C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
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)
D.-
-
已知i是虚数单位,
是纯虚数,则实数a等于( )
A.-1
B.1
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
D.-
-
已知i是虚数单位,
是纯虚数,则实数a等于( )
A.-1
B.1
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
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OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
D.-
-
已知i是虚数单位,
是纯虚数,则实数a等于( )
A.-1
B.1
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAC/SURBVDhPzZNBEsUQEETnXBaOY+8m1g5iOwfJ
wlH6ZwRJ8ItklVSpQmn9picIg4+IsDT+iUf77R59XMz2zEB7xIw7x44e2nI+zrASZl5PxZG5OskN
0WtQdp+Ku0ClhFXnVsyWUKp45nyrH3ggjvDaokQnRIRgchtMJZRfs8fV8KVHpVUhhDR1iqDcluat
WBKu3ZIDe2iyPi0SweF+FUtA/SM58G98ZscV9xH28A1cNzenQMq9E8tF4v7KuVCsin81ApctPDAe
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)
D.-
-
已知x∈R,i为虚数单位,若
为纯虚数,则x的值为( )
A.1
B.-1
C.2
D.-2
-
已知a是实数,若i是虚数单位,且
为纯虚数,则a的值是( )
A.-1
B.1
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
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-
已知i是虚数单位,
是纯虚数,则实数a等于( )
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D.-