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四川省射洪中学校2020-2021学年高二上学期开学考试数学试题
四川 高二 开学考试 2020-10-17 22次

一、单选题添加题型下试题

2. 函数eqId31fa045e53c249aaa541cb4a2686e97beqId62830bd769f74f11a5ea98942c393571的单调递增区间是(   )
A.eqIde9bd809ec60048c1b6261f5d22b9feadB.eqIde9bd809ec60048c1b6261f5d22b9feadeqIdd50dc79d33444309a54990451d2914df
C.eqId8e00a8b82de9401199e5df7f858b1c61D.eqIdd50dc79d33444309a54990451d2914df
单选题 | 较易(0.85) | 2020·四川射洪中学开学考试
4. 在平面直角坐标系中,eqId2efda802d5534f6d92d9f8af7aaec28b为坐标原点,且满足eqId5a3c58bc68594ebd86662552106846bc,则eqId1b619ffe90a242ad8eb48ccdcbff3913的值为(   )
A.eqId49b7b111d23b44a9990c2312dc3b7ed9B.eqId9e311be638c64d4eaed28e15dcba7451C.eqId4a6d9e827a244409a8376651b7e648c4D.eqIde1490df2d2c84688942d45fd01c90a85
单选题 | 较易(0.85) | 2020·四川射洪中学开学考试
5. 若eqId377a5cf331764219bdef00846e73f5c8,则eqId423fb92a55c448798627f665668e8187(   )
A.eqId4adf22999d4e47da945bc7c62e3f9824B.eqId9e311be638c64d4eaed28e15dcba7451C.eqIddda48cced83d424b89b7d8f8c62b1056D.eqId6c134c414a5e4643849c88caa4d6a5f0
单选题 | 容易(0.94) | 2020·四川射洪中学开学考试
6. 若eqIddb5481de79c946c0a760143297d5eade为数列eqId93e38ecd74a24cb59da79181b95bfd3a的前eqIdf458db68122849abb588feb2e682d9ac项和,且eqId96568476fb744cd89d70c1343c46470c,则eqId71de8744c0384db5be20ec931253e5a9(   )
A.eqIdad04b6cca48b47cdbd0d239142650251B.eqIdb0a821c20bc040b98a8df3de0a1af77cC.eqId3ffcd4e569b247ada487b27495427e36D.30

二、填空题添加题型下试题

7. 若数列eqId93e38ecd74a24cb59da79181b95bfd3a满足:eqId77b3f6b9955e499dbdab033a38779496eqId480c9c28e2c4440c92045e47dbbcad69,则eqId38e7aab9632e418f8d07479b236353ec_______.
填空题 | 一般(0.65) | 2020·永寿县中学开学考试(文)
同步
8. eqIdb1803dcd0646465285ffbf361c487652的内角eqId10bbe48f886a4fa78fdf8c1fd064f9b4的对边分别为eqId0ce93bfa1f6a4a23b3258410dd19847a,若eqId26b6793215114334a2e85900542f53a9,则eqId45efe8ebdf444addb2fd9e39ac69c8fd ________.
更新:2020/10/18组卷:7399引用[24]

三、解答题添加题型下试题

9. 已知数列eqId93e38ecd74a24cb59da79181b95bfd3a的前eqIdf458db68122849abb588feb2e682d9ac项和为eqIddb5481de79c946c0a760143297d5eade,且满足eqId19c6f06e3a20485cb0a2ecfa912859dfeqIdc60df934817a48528e3bd750cf12052a.
(1)求数列eqId93e38ecd74a24cb59da79181b95bfd3a的通项公式;
(2)求数列eqId1a2485ae27ff48d5a785a9ad868570c6的前eqIdf458db68122849abb588feb2e682d9ac项和eqId92ed363a54bd4a8a93df9463bb3af1f5.