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已知函数eqId56357a286e5042c7b92d6b366f54bf6feqId6a13e7b7d92849eba6c91758c54a673feqIdeeaead36cd034e558bf0eec391b2cc71).
(1)判断eqId4837c94ef0ff4dcf9b1dda4df363275a的奇偶性并证明;
(2)若eqId63d0ec1ae9c949f09e7a474d7e02568e,是否存在eqIdf7868ff006b843ee8e14de9c536a59db,使eqId4837c94ef0ff4dcf9b1dda4df363275aeqId6d26eefa6694427ebe65c6e4bbc8cba6的值域为eqId694ea8809eb54a3ab94cf14846fcd43b?若存在,求出此时eqId3a4208e0040c42ed8b09de2cae9d562e的取值范围;若不存在,请说明理由.
更新:2020/2/20难度:0.65题型:解答题组卷:93
某同学用二分法求方程eqIdde551a17a9464702a3c9d385a36cffe6的近似解,该同学已经知道该方程的一个零点在eqId5da0bbf47ac2461fbacc6282cf90ab34之间,他用二分法操作了7次得到了方程eqIdde551a17a9464702a3c9d385a36cffe6的近似解,那么该近似解的精确度应该为( )
A.0.1B.0.01C.0.001D.0.0001
更新:2020/2/20难度:0.65题型:单选题组卷:402
已知函数eqId6f13759e937144069819aed2ae5a1057是定义在eqId42a1589cdb3246bc99b9b38bad1b126d上的奇函数,满足eqIdf55e0592115949c7b2389fb072fe348d,当eqIdeb837b33d45946fa84bb32a34b7838bf时,有eqIdf47e5678489743b991e691315c55d8a5.
(1)求实数eqId4959a8a13c0b40f3a3b076626a4b616c的值;
(2)求函数eqId6f13759e937144069819aed2ae5a1057在区间eqIda9f401acfcd44892b03391f90a75b758上的解析式,并利用定义证明证明其在该区间上的单调性;
(3)解关于eqId3a4208e0040c42ed8b09de2cae9d562e的不等式eqId82d03926dc4f48cf85c9e131170eabec.
更新:2020/2/20难度:0.65题型:解答题组卷:162
某商品在最近100天内的单价eqId777e965334fc42f1bd56a6512374406a与时间t的函数关系是eqIdd6011c9f01bd408084bfad374eefa413,日销售量eqId63f1d8a2dbaf494ea2d4188b4d4df5ca与时间t的函数关系是eqId4ca98c8e46694333b37db15826731df1求该商品的日销售额eqId6bc1b3e86ae84cf0a589eb9f8daaf170的最大值eqIdf6ad41008b2c496f8c7d00b28d62a41d日销售额eqId1f2c92dfd3d8438ca50bd7b1c0ed8a80日销售量eqId125def3606544bc58ccdd097b4c3556a单价eqId1dff27163d4a47f3a3201b3b8d5ae407
更新:2020/2/20难度:0.65题型:解答题组卷:118
已知eqId09512ee883ad49478d63afc4f032bc68eqId298dd4bf35374b94b591f0d406c2a139eqId6f0940a77062407c9aab46e26d5494a7,则eqId70a27b6ddf6b478285353abb3b1f3741eqIdaea992e70d4943e49e893817eb885ed7eqIdad7cefefaba947e1a168bca491c4fca1的大小关系为(   )
A.eqIdde23c9bee5f2497a98f967afa9b73a7aB.eqId2cf6c501fcaf451c89bbbe8a7b5da7adC.eqIde20b3cdceb054975bbbb3a4598602bafD.eqId0d0cc8a6003c4e21bacd608a53c711cf
更新:2020/2/19难度:0.85题型:单选题组卷:0
函数eqIdbbffb91126994bf79228f997cdff262b的图象大致形状为(   )
A.figureB.figure
C.figureD.figure
更新:2020/2/19难度:0.85题型:单选题组卷:0
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