2. 财务会计
  3. 设D是矩形区域:0≤x≤π/4,-1≤y≤1， A. 0 B.-1/2 C.1

设D是矩形区域:0≤x≤π/4,-1≤y≤1， A. 0 B.-1/2 C.1

昕玥2019-12-17  49
问题 设D是矩形区域:0≤x≤π/4,-1≤y≤1，A. 0 B.-1/2 C.1/2 D.1/4
选项
答案D
解析[img]/upload/tiku/190/2457245_1.jpg[/img]
转载请注明原文地址:https://ti.zuoweng.com/ti/ZYSNKKKQ
相关试题推荐
随机试题