收藏
下载资源 加入VIP,免费下载

（浙江专用）2020版高考数学大一轮复习课时42.2函数的单调性与最值教师备用题库.docx

上传人：inwarn120 文档编号：1084630 上传时间：2019-04-07 格式：DOCX 页数：1 大小：17.83KB
下载 相关 举报
（浙江专用）2020版高考数学大一轮复习课时42.2函数的单调性与最值教师备用题库.docx_第1页
第1页 / 共1页
亲，该文档总共1页，全部预览完了，如果喜欢就下载吧！
资源描述

12.2 函数的单调性与最值教师专用真题精编(2018 课标全国,10,5 分)若 f(x)=cosx-sinx在-a,a是减函数,则 a的最大值是( )A. B.4 2C. D.34答案 A 本题主要考查三角函数的图象和性质.f(x)=cosx-sinx= cos ,2 (x+4)由题意得 a0,故-a+ 0, 4所以 a的最大值是 ,故选 A.4

展开阅读全文
相关资源
猜你喜欢
  • DIN 8584-6-2003 Manufacturing processes forming under combination of tensile and compressive conditions - Part 6 Upset bulging Classification subdivision terms and definitions《拉伸和加.pdf DIN 8584-6-2003 Manufacturing processes forming under combination of tensile and compressive conditions - Part 6 Upset bulging Classification subdivision terms and definitions《拉伸和加.pdf
  • DIN 8584-7-2003 Manufacturing processes forming under combination of tensile and compressive conditions - Part 7 Hydroforming widening Classification subdivision terms and definiti.pdf DIN 8584-7-2003 Manufacturing processes forming under combination of tensile and compressive conditions - Part 7 Hydroforming widening Classification subdivision terms and definiti.pdf
  • DIN 8585-1-2003 Manufacturing processes forming under tensile conditions - Part 1 General Classification subdivision terms and definitions《拉伸成形加工工艺 第1部分 总则 分类、细分类、术语和定义》.pdf DIN 8585-1-2003 Manufacturing processes forming under tensile conditions - Part 1 General Classification subdivision terms and definitions《拉伸成形加工工艺 第1部分 总则 分类、细分类、术语和定义》.pdf
  • DIN 8585-2-2003 Manufacturing processes under tensile conditions - Part 2 Stretch reducing Classification subdivision terms and definitions《拉伸成形加工工艺 第2部分 拉伸减径 分类、细分类、术语和定义》.pdf DIN 8585-2-2003 Manufacturing processes under tensile conditions - Part 2 Stretch reducing Classification subdivision terms and definitions《拉伸成形加工工艺 第2部分 拉伸减径 分类、细分类、术语和定义》.pdf
  • DIN 8585-3-2003 Manufacturing processes forming under tensile conditions - Part 3 Bulge forming Classification subdivision terms and definitions《拉伸成形加工工艺 第3部分 膨涨成形 分类、细分类、术语和定义》.pdf DIN 8585-3-2003 Manufacturing processes forming under tensile conditions - Part 3 Bulge forming Classification subdivision terms and definitions《拉伸成形加工工艺 第3部分 膨涨成形 分类、细分类、术语和定义》.pdf
  • DIN 8585-4-2003 Manufacturing processes forming under tensile conditions - Part 4 Stretch forming Classification subdivision terms and definitions《拉伸成形加工工艺 第4部分 张拉成形 分类、细分类、术语和定义》.pdf DIN 8585-4-2003 Manufacturing processes forming under tensile conditions - Part 4 Stretch forming Classification subdivision terms and definitions《拉伸成形加工工艺 第4部分 张拉成形 分类、细分类、术语和定义》.pdf
  • DIN 8586-2003 Manufacturing processes forming by bending - Classification subdivision terms and definitions《弯曲成形加工工艺 分类、细分类、术语和定义》.pdf DIN 8586-2003 Manufacturing processes forming by bending - Classification subdivision terms and definitions《弯曲成形加工工艺 分类、细分类、术语和定义》.pdf
  • DIN 8587-2003 Manufacturing processes forming under sheering conditions - Classification subdivision terms and definitions《剪切成形加工工艺 分类、细分类、术语和定义》.pdf DIN 8587-2003 Manufacturing processes forming under sheering conditions - Classification subdivision terms and definitions《剪切成形加工工艺 分类、细分类、术语和定义》.pdf
  • DIN 8588-2013 Manufacturing processes severing - Classification subdivision terms and definitions《切断加工工艺 分类 细分类 术语和定义》.pdf DIN 8588-2013 Manufacturing processes severing - Classification subdivision terms and definitions《切断加工工艺 分类 细分类 术语和定义》.pdf
    • 相关搜索

    当前位置：首页 > 考试资料 > 中学考试

    copyright@ 2008-2019 麦多课文库（www.mydoc123.com）网站版权所有
    备案/许可证编号：苏ICP备17064731号-1