首页>知识点选题>根据函数的单调性求参数值
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单选题 | 一般(0.65) | 2020·江西省信丰中学期末
已知奇函数eqId6f13759e937144069819aed2ae5a1057,且eqId2fc60ac7e64449a09e6a135019ce4b5deqId1d40c107624b4197bad0d10756051733上是增函数.若eqId7e7ebf8dee4543c0a3b654ab4900270feqId01897a59cfe4414f87fce471e699dfcdeqId434c34ef4a4945f9bdee89e9c7c89e08,则abc大小关系为
A.eqIdde23c9bee5f2497a98f967afa9b73a7aB.eqId45615ef0900647268b98d1d5eeb28a58C.eqId98df60d61acf40a38ea6e88af8316379D.eqId2cf6c501fcaf451c89bbbe8a7b5da7ad
以下命题,错误的命题个数是(   )
①若eqIdb7c852996e2b41c98cd21335c688261e没有极值点,则eqId5da34cc34c4d4b239b0be6e6712c684b
eqId158d4a73ccde4e6c927f33c733a3c8c1在区间eqIdbe89237f86734d1f8ad63db1e935390f上单调,则eqId6672ce80e43b470ba51811a434a61a10
③若函数eqId6426adbb29bf4267a2681cba0ea3f9f9有两个零点,则eqId4bad420d02c0410dbc7df88ad2342c8d
④已知eqId1ed1d2bac37444cd847e78e77fbb92c2eqId4d2187284c5d4de29906363f7d21f60feqIda4be99d332154d13a4a6ed1ff6444fe7eqIdbde4d973c7994b6e858d3070a7d8f7d9且不全相等,则eqId8a16b1b7026b4d5ab3226a081daf0acb.
A.eqId37705e1ef6a84bbdbe88433e75932cdfB.eqIdc052ddfbd4524f67a79e0e77c2e5656aC.eqId8898c1dc81824f3098bbeae74e8f11fdD.eqIdddd35c5d043e4ebeac32a99367053c68
已知函数eqId5929169d4c594b11ad2e9e358f187589eqId70a27b6ddf6b478285353abb3b1f3741为常数).
(1)若常数eqIdc450006af2d44fcc984984be95e8b6c1eqId2c07a82215514a4eaf0b1325853b8f48,求eqId4837c94ef0ff4dcf9b1dda4df363275a的定义域;
(2)若eqId4837c94ef0ff4dcf9b1dda4df363275a在区间eqId60873f7578974733b715e7122adab8fd上是减函数,求eqId70a27b6ddf6b478285353abb3b1f3741的取值范围.
填空题 | 一般(0.65) | 2020·古浪县第二中学期中(文)
eqId5b8b1090d2e841a6a927500d68995110eqId81a61fab9daf4a48ab91842cd3677389在区间eqId44866d20a1d449ab9db7e7ea3026fadd上都是减函数,则eqId70a27b6ddf6b478285353abb3b1f3741的取值范围是______.