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双曲线-=1(a>0,b>0)的两个焦点为F1,F2,若双曲线上存在一点P,满足|PF1|...
试题详情
双曲线
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAxCAYAAADqZJipAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAVBJREFU
SEvFVYkNwyAMpCuzDpt4DqZgCdfmSVMXY4NaNRKqUnHxnZ/zA+kJJw8DT55wAqosdWBBiIFl0EmY
xUUVWCAhlHY7JwJHwP5a//NRLYBRRPUBiWg6AlLENHh3ra6IGd71uTQWiJhkSq3kMCheFDPCja5K
tZag1nCceJXHRVVrkMB0+KuD0qzYM3CjygWmzshKInQgNRP35SsRdutfyWGKs7SrGnsbU0TSuoGs
EXOisek6C/3CpOAyMptGp9jnT4yPQdVOxkfEfUhDuKZjUcf9uDU5u+dPVPfV/Tarupsv67hyc38D
CDf3A4Wb+4HCzd1A6eYu4MzNTaDm5kvgys3NiA7r4OXJI0Y7In9u4Ll11OKOpdLbzLBKotou3u+x
NsvVA5mqMGL+0PtKm3qOtP66vRzeGu5AufJWQ96odsNiXaN2tsZD7/hGA+yFfgI90L0W/BTXrwAA
AABJRU5ErkJggg==
)
-
![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAxCAYAAADqZJipAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAWlJREFU
SEulVtsRAyEINC3bDp1Qh1XYhAFfUURljDP3cRk3LLAs90l03Mth4MtxL6DMcg+MCb3jNOiBFMTF
LTAiJIzldgACe0z1Nf9moxoxeRHVBiSi8ASkiNB411xNEQPO+ZlyjOgTyJLeisMg3ymGhAPdLdXc
gtzD9vjeHhPVnUBcU0fPg3smmq2BM1XOxQ0VCLBKTIJLjgEGIGkUlTKqWmVgoxdwKsI2xx4xA23R
flWtBQnDRNzmtOSY1e+GZt9gbawIaKjH9G8uGvu2tENO9p1kuWEaK1U5s5ClsPX3/yJac9K1+oB+
L8452N7NjxFPbm6nKtzcDhRubgcKNzcDpZubgJqbVyBvI9blbLrNATU3/0VU5vLk5h0474m7Bjsw
ANEks9rt/I3Ia47VzZmittpGsOLkZSWYgJlm/6RgYa/VVagSzXE7GV3P8cIZ+wRKL1WzooyOX1Dn
pXNv23LDpNUN1YdwBPkCYpW/o9N3LHIAAAAASUVORK5CYII=
)
=1(a>0,b>0)的两个焦点为F
1,F
2,若双曲线上存在一点P,满足|PF
1|=2|PF
2|,则双曲线离心率的取值范围为( )
A.(1,3]
B.(1,3)
C.(3,+∞)
D.[3,+∞)
相关试题
-
F1、F2是双曲线的两个焦点,双曲线上存在点P,满足∠F1PF2=60°,且|PF1|=2|PF2|,则该双曲线的离心率为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALtJREFU
OE/Nk9sVhCAMRENH9EMXFEET9EAB1ME59pAmsgmPFRF15Wv5UuQymUlUxAuGpZQat+bvAo+LT862
z+f+HMZIlq2IHfDpW+zU3NFzIm8jYUb4mS9o/DOMWMEimPwbuE80+bdl74oLnjvpGpyNJYFnz8Mg
YLQENUCgYEoLwOwtuJuwzjeEEDLkNJB2WynnEkaKdpZ2rqCoH2BRagPS9fjk2fBHUV/6MTanCbRb
g6UUUV9SbnH/Cn8A/r2EUaEPy7EAAAAASUVORK5CYII=
)
C.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
D.2
-
F1、F2是双曲线的两个焦点,双曲线上存在点P,满足∠F1PF2=60°,且|PF1|=2|PF2|,则该双曲线的离心率为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALtJREFU
OE/Nk9sVhCAMRENH9EMXFEET9EAB1ME59pAmsgmPFRF15Wv5UuQymUlUxAuGpZQat+bvAo+LT862
z+f+HMZIlq2IHfDpW+zU3NFzIm8jYUb4mS9o/DOMWMEimPwbuE80+bdl74oLnjvpGpyNJYFnz8Mg
YLQENUCgYEoLwOwtuJuwzjeEEDLkNJB2WynnEkaKdpZ2rqCoH2BRagPS9fjk2fBHUV/6MTanCbRb
g6UUUV9SbnH/Cn8A/r2EUaEPy7EAAAAASUVORK5CYII=
)
C.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
D.2
-
F1、F2是双曲线的两个焦点,双曲线上存在点P,满足∠F1PF2=60°,且|PF1|=2|PF2|,则该双曲线的离心率为( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAALtJREFU
OE/Nk9sVhCAMRENH9EMXFEET9EAB1ME59pAmsgmPFRF15Wv5UuQymUlUxAuGpZQat+bvAo+LT862
z+f+HMZIlq2IHfDpW+zU3NFzIm8jYUb4mS9o/DOMWMEimPwbuE80+bdl74oLnjvpGpyNJYFnz8Mg
YLQENUCgYEoLwOwtuJuwzjeEEDLkNJB2WynnEkaKdpZ2rqCoH2BRagPS9fjk2fBHUV/6MTanCbRb
g6UUUV9SbnH/Cn8A/r2EUaEPy7EAAAAASUVORK5CYII=
)
C.2![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAASCAYAAACEnoQPAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAMlJREFU
OE/NU9ENxCAI1Y3cxy0cwiXYwQGcg6Q7uAQnKt5pTer5VZImYnk8eKCmbGoyrfV8tfYZPFuOXF3f
414ORmBd6ucipVbusrmh5xTJAbZwJOAEzX8EJ8TOxBlSdJ39EXwTlFvYZZ7BCIqki/+Yh/7zcu3P
OVF0QCJd2UwKto3B9jyrDUNwFGVGMqoQQjl6o8j4q5xnMCvcp8UBWTT2v2WXCir7L5gF6gsii6Jq
+UPPNv9k9qOHcXlDyvgzMJfM7EfMIvcu+APTLYOZ98eL2wAAAABJRU5ErkJggg==
)
D.2
-
设圆锥曲线r的两个焦点分别为F1,F2,若曲线r上存在点P满足|PF1|:|F1F2|:|PF2|=4:3:2,则曲线r的离心率等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
或2
C.
2
D.
-
设圆锥曲线r的两个焦点分别为F1,F2,若曲线r上存在点P满足|PF1|:|F1F2|:|PF2|=4:3:2,则曲线r的离心率等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
或2
C.
2
D.
-
设圆锥曲线r的两个焦点分别为F1,F2,若曲线r上存在点P满足|PF1|:|F1F2|:|PF2|=4:3:2,则曲线r的离心率等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
或2
C.
2
D.
-
设圆锥曲线r的两个焦点分别为F1,F2,若曲线r上存在点P满足|PF1|:|F1F2|:|PF2|=4:3:2,则曲线r的离心率等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF/SURBVFhH5VaBjcMgDPRk7MQ6LMMojMIDTnjj
2gFSp33pI0WtBLnD58M25C8+8EXu/EfIU8gOXA7JWIuGCxnq6+MAjpFHj4vm5DF7FzLGU/4XDspP
ZK+LxpGndBBjwNF/kpyKXNUVZe+yGEd+kNeI9Zw/TN7gD+M54miTnNeo6nP+avclBZehG7Ds/914
33CU9PIALO/m5HqVSDk4ye20ELC7eMqJdWD9HesHfsfMblNeZ7nW1DCp7Y+TS5KfES0bjkmwHDmP
TiPcUaHs1U1ED7pCLu3R8JuR9asxrqzIvhP1FvnskHfyvhw5NdepAjfcapnt370UA1J7rwglp9OC
1JXqg0rxFsOG1m166cFpg/ddSXIevWjOCTakGIdpg3eeWa6v1mfYrzkXJo53DjB8q3c13MbnLDNi
AXuMfMiRJW3BErAJee23vgy4TzwydieP/pnhEVMpYzfy6vCh0Rdj8MZ/V48rbOhj7dBgbOSfYW+X
17sKiIXKEmwX6/9G/gMH+UX37iKzewAAAABJRU5ErkJggg==
)
B.
或2
C.
2
D.
-
设圆锥曲线r的两个焦点分别为F1,F2,若曲线r上存在点P满足|PF1|:|F1F2|:|PF2|=4:3:2,则曲线r的离心率等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUwAADqYAAAOpgAABdwnLpRPAAAAYlJREFU
WEftVtuRwyAM1LVMO3RCHVRBExzvk2TZAofE+ThmMknGeFdaPX9iOvDUyeRPHXiKuCg+yIOLBkx0
YbM5BRdyaCNYT8Arubf14XZyH61xsfqTficOzI9kzw83ex5CI64Oe/tJcixyVleUfciy2fNGnj0+
j/mbyQt8SzyDMvrlmGePWqNSyyQ4E2EkIC61ko3rsnfyKQNY3Ld5rrqd8t4ZKdtxI+C12BvE4jft
HzXhWLKjDqebLt7Asq9CTPf22gH/Pp2Ik68Ys0QuEX4N+YrXrTqonJK0vYw02SUVeLj6/4I5myRX
XmHAWbwlcgzKye7GXfVcko0bwrvbbOzZMpHij3rvWTlpZUbIx6JyxIYybUbrqdsGn7s8jlcxJs8U
bAjek22DT56VBOJ3NexjzIWN4xUDyLvnU61e43vWNmIBm3pOYrSTNmEJ2Ig8z1ubVop3HBl7kHu7
vsXMmnmGXchzhpNBnxKDD/5ZokPGX2DDWGvJvN4jv4attte7Hs+8908+o9L2O79o+910ulV1nAAA
AABJRU5ErkJggg==
)
B.
或2
C.
2
D.
-
设圆锥曲线r的两个焦点分别为F1,F2,若曲线r上存在点P满足|PF1|:|F1F2|:|PF2|=4:3:2,则曲线r的离心率等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx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)
B.
或2
C.
2
D.
-
设圆锥曲线r的两个焦点分别为F1,F2,若曲线r上存在点P满足|PF1|:|F1F2|:|PF2|=4:3:2,则曲线r的离心率等于( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB8AAAAjCAYAAABsFtHvAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAF/SURBVFhH5VaBjcMgDPRk7MQ6LMMojMIDTnjj
2gFSp33pI0WtBLnD58M25C8+8EXu/EfIU8gOXA7JWIuGCxnq6+MAjpFHj4vm5DF7FzLGU/4XDspP
ZK+LxpGndBBjwNF/kpyKXNUVZe+yGEd+kNeI9Zw/TN7gD+M54miTnNeo6nP+avclBZehG7Ds/914
33CU9PIALO/m5HqVSDk4ye20ELC7eMqJdWD9HesHfsfMblNeZ7nW1DCp7Y+TS5KfES0bjkmwHDmP
TiPcUaHs1U1ED7pCLu3R8JuR9asxrqzIvhP1FvnskHfyvhw5NdepAjfcapnt370UA1J7rwglp9OC
1JXqg0rxFsOG1m166cFpg/ddSXIevWjOCTakGIdpg3eeWa6v1mfYrzkXJo53DjB8q3c13MbnLDNi
AXuMfMiRJW3BErAJee23vgy4TzwydieP/pnhEVMpYzfy6vCh0Rdj8MZ/V48rbOhj7dBgbOSfYW+X
17sKiIXKEmwX6/9G/gMH+UX37iKzewAAAABJRU5ErkJggg==
)
B.
或2
C.
2
D.