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过双曲线eqId39ccae38ef814111975539e84a919f92上一点eqId2381423d4cd146cab95f55527681a766作直线eqId417e80f1349244878d01fe90e0891f5f,与双曲线的两条渐近线分别交于eqIdfcf606636c8549158e75f6db78c50096,且eqId2381423d4cd146cab95f55527681a766为线段eqId4ea1af672e334fb1a6a3ab675d494e72的中点,若eqId100bc8ce9e704d80bbbf1f0ff7113430eqId2efda802d5534f6d92d9f8af7aaec28b为坐标原点)的面积为2,则双曲线的离心率为______.
更新:2020/05/31难度:0.65题型:填空题组卷:0
已知双曲线eqIdc079da6a17e94b63b1922c993ab72715的左焦点为eqId0aa72756ed0c4c7a89f26aa94f43e47d,右顶点为eqId0cd8063abf2b458f80091bc51b75a904,过点eqId0cd8063abf2b458f80091bc51b75a904作垂直于eqId8e15963708e9415da25069fea5906e24轴的直线交双曲线的两条渐近线于eqIdcc614bd3390c4d028df189b234dcc351eqId8754ce8cf7f34f04abb9a0c041f57f5c两点,eqId937353dd4a3440099a5734703a4d6bf7为等边三角形,则双曲线离心率为(   )
A.eqIda2a0ce3781fa4c26b624f5966b7dee44B.eqId2644c4fd7d684e75ae5ed93cb3581244C.eqIdc052ddfbd4524f67a79e0e77c2e5656aD.eqId8898c1dc81824f3098bbeae74e8f11fd
更新:2020/05/30难度:0.65题型:单选题组卷:0
已知直线eqIdbb3d6c58b53a4f54ab143af8631452f4双曲线eqIdca9bbb19cd4b49ae8f45dbf75ce5374c相交于不同的两点eqIdcc614bd3390c4d028df189b234dcc351eqId8754ce8cf7f34f04abb9a0c041f57f5ceqId63db14a5b4334f3ea583c8fb12b0d175为双曲线eqId19a4eb16029e4550a14f2afe4741a3c3的左焦点,且满足eqId27575ef8e17f47e38bef8e606b45c3a3,则双曲线eqId19a4eb16029e4550a14f2afe4741a3c3的离心率为(   )
A.eqIda2a0ce3781fa4c26b624f5966b7dee44B.2C.eqId15755fd7039d4760803209c0bada9344D.eqId3e1543ad0883432cb23af678b3feacf4
更新:2020/05/30难度:0.65题型:单选题组卷:0
已知eqId5f04473e64c141bcbe9b0a8af27f4aa8分别是双曲线eqId58ecc109d7934cbb921c58754c302a4b的左、右焦点,直线eqId80969bc3ad134a53a8f33e39da0bed98与双曲线的一条渐近线交于点eqIdbedf755e0fdb4d078d6859360706b163,且eqId2cc8ba14c6414abb87b5721861164d59,则双曲线的离心率为(   )
A.eqId65021072e3ee4edc934739d219c8c5e2B.eqIda2a0ce3781fa4c26b624f5966b7dee44
C.eqIdc052ddfbd4524f67a79e0e77c2e5656aD.eqId8898c1dc81824f3098bbeae74e8f11fd
更新:2020/05/30难度:0.85题型:单选题组卷:0
在平面直角坐标系eqId2272a344734c4fb088737b84294f7219中,双曲线eqId0f8ef12bd5d54558b8a3aa62edcc9e9d的渐近线与圆eqId89c1e1b3cc2c4fe6a8b4c5ac297c9c4c没有交点,则双曲线eqId19a4eb16029e4550a14f2afe4741a3c3的离心率eqIdf035b8f27d4645bb9f6a66f4a3f51918的取值范围是(   )
A.eqIda1ef3421a76e431cae0a4dd69ddf3396B.eqId9941f4b37252477a93a8b47d4a4d488e
C.eqId960edc64feb74944901d75d9f9bc6a09D.eqIdbefced2524a8415793c0bc2a9b54a496
更新:2020/05/30难度:0.85题型:单选题组卷:0
如图所示,eqId0aa72756ed0c4c7a89f26aa94f43e47deqIdde963a24921f4ee7a991bf9d4f43a42e分别是双曲线eqId5777d1ba9de742bcb7a835ecb38c8e67的左、右焦点,过eqIdde963a24921f4ee7a991bf9d4f43a42e的直线与双曲线eqId19a4eb16029e4550a14f2afe4741a3c3的两条渐近线分别交于eqIdcc614bd3390c4d028df189b234dcc351eqId8754ce8cf7f34f04abb9a0c041f57f5c两点,若eqId28cf0cd53bee4410ab9a79d40048d711eqId0e92de5833174e7894eb2485b43f70b8,则双曲线eqId19a4eb16029e4550a14f2afe4741a3c3的离心率为______.figure
更新:2020/05/30难度:0.65题型:填空题组卷:0
己知抛物线eqIdd050af449075401299cc78c647d310e8的焦点为eqId63db14a5b4334f3ea583c8fb12b0d175,准线为eqId417e80f1349244878d01fe90e0891f5f.若eqId417e80f1349244878d01fe90e0891f5f与双曲线eqId0f14428848fa4e8cbdaccdcb9711090d的两条渐近线分别交于点eqIdcc614bd3390c4d028df189b234dcc351和点eqId8754ce8cf7f34f04abb9a0c041f57f5c,且eqId2bb0d7171c2a47d49de9cc146af0a8dc (eqId2efda802d5534f6d92d9f8af7aaec28b为原点),则双曲线的离心率为(   )
A.eqIda2a0ce3781fa4c26b624f5966b7dee44B.eqId65021072e3ee4edc934739d219c8c5e2C.2D.eqIdcd9b24a6a6e5426ab775be20461174e3
更新:2020/05/30难度:0.85题型:单选题组卷:0