首页>知识点选题>由函数在区间上的单调性求参数
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函数eqId484abe789aa541e7b078d0d806ce276f在区间eqId7f992f44b6c64819a9969b5b02a7691a上是增函数,则实数a的取值范围为________.
已知函数eqId4837c94ef0ff4dcf9b1dda4df363275a的导函数为eqIdd26cd9f8ad374ae192a20aada45c1618,若对任意的eqId6fc94f6e181444c6b809fb393eb8fae6,都有eqId99d791e9ac884763b9f407601ff58189,且eqIdc71018606de14e3685258d2096df8b5e,则不等式eqId2a79bdeda5654486b80d1c1f2515d0b9的解集为(   )
A.eqIddca4c31f92e1447fb6eceb9fdf294175B.eqIdcd23deec614f478589b5ff357029ae50C.eqIdab8012328b434a26ae4756534736a3c5D.eqId722758fe42a54ebfb03572d5e2a0bef5
已知函数eqId57429873b2ac46a9ae73c18c30411d20.
(1)eqId316e2199840e418e87252dba1d7d7ffd时,求eqId6f13759e937144069819aed2ae5a1057在[﹣2,0]上的最大值;
(2)若eqId6f13759e937144069819aed2ae5a1057在[0,3]上单调递增,求eqId70a27b6ddf6b478285353abb3b1f3741的取值范围.
已知函数eqId4837c94ef0ff4dcf9b1dda4df363275a的导函数eqIdd26cd9f8ad374ae192a20aada45c1618无零点,且对任意eqIddb2434488713493c848a36c620dcdcaf,都有eqId8701736517cc4ddca8cb3ac3c4538585,则eqId7bc7961423994343a15b0f8ed72f365d(   )
A.eqId4e2a05e4ed5345bfa9b26d9fbd866b59B.eqId12cdee9269084cdd9a6db21bdd50a61cC.eqIdfca343da1efc413487359c1551da9dbeD.eqIda86879ae304449a4a6e6461c485a1f13
已知函数eqIde94c578139cd4e63ace380fa79b7c66f.
(1)若函数eqId9b37d03e47a347fc8fab9f814ba5fac4在定义域上单调递减,求实数eqId70a27b6ddf6b478285353abb3b1f3741的取值范围;
(2)设函数eqId4837c94ef0ff4dcf9b1dda4df363275a有两个极值点eqId735b8047beee4dee870fc72ae837a245eqIdecaaaffea9af458c8e6dff16f15c1a73,求证:eqIdc72f32f49c7d432ab0aad2474295c331.
已知eqIde9edd995034840cfb557ea415074294a,函数eqId47ba669459f84aa8b6c62ec24237938deqId6fc94f6e181444c6b809fb393eb8fae6eqIdf035b8f27d4645bb9f6a66f4a3f51918为自然对数的底数).
(1)当eqIda08ce385279d41c789695fb651b17890时,求函数eqId4837c94ef0ff4dcf9b1dda4df363275a的单调递增区间;
(2)若函数eqId4837c94ef0ff4dcf9b1dda4df363275aeqIdbe1458080a8c442fbbc83863be99bb06上不存在极值点,求eqId70a27b6ddf6b478285353abb3b1f3741的取值范围.
已知eqIdb98c1a721c8a4a4bb32ea864d43af6a7eqIdc5fe4b49dc4c4e05a5856e97b01f2952上是增函数,则实数eqId70a27b6ddf6b478285353abb3b1f3741的取值范围为(   )
A.eqId1ffaf94b35dc45ed88810d626a36ed02B.eqId8869a27d23b743d0862cd46980701085
C.eqIdf7a71e4f410044878a9f7f639353b539D.eqIdecb5a508a7db4f7da1dc2d8c7bab60cc