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答案来源:www.ybaotk.com经济数学第一套作业(1~2章)
1.[单选题] <p><img height="29" width="302" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/649.bmp" /></p>
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A.<p><img height="29" width="31" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/649a.bmp" /></p>
B.<p><img height="43" width="40" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/649b.bmp" /></p>
C.<p><img height="17" width="11" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/649c.bmp" /></p>
D.<p><img height="30" width="25" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/649d.bmp" /></p>
答:——C——
2.[单选题] <p><img height="40" width="339" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/625(1).bmp"/>( )。</p>
A.必要条件
B.充分条件
C.充分必要条件
答案 q761296021
D.无关条件
答:——D——
3.[单选题] 若函数y=㏒ . x/(x-2)+arcsin f(x)定义域是[-3,0)∪(2,3],则f(x)( )。
A.<p><img height="20" width="13" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/607a.bmp"/></p>
B.<p><img height="31" width="20" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/607b.bmp"/></p>
C.<p><img height="77" width="25" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/607c.bmp"/></p>
D.<p><img height="26" width="16" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/607d.bmp"/></p>
答:——C——
4.[单选题] 下列集合中为空集的是( )。
A.{x|x<0 ,x为实数}
B.[object Object]
C.<p><span lang="EN-US" style="font-size: 10.5pt; font-family: "Times New Roman","serif"; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img height="25" alt="" width="82" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/QQ截图20121130094401.png" /></span></p>
D.{x|x>0,x为实数 }
答:————
5.[单选题] Y=x+sinx在区间(-∞,+∞)内是( )。
A.周期函数
B.单调增函数
C.奇函数
D.有界函数
答:————
6.[单选题] <p><img height="40" width="191" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/611.bmp" /></p>
A.<p><img height="37" width="89" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/611a.bmp" /></p>
B.<p><img height="44" width="123" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/611b.bmp" /></p>
C.<p><img height="31" width="59" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/611c.bmp" /></p>
D.<p><img height="36" width="93" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/611d.bmp" /></p>
答:————
7.[单选题] <p><img height="26" width="150" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/613.bmp"/>( )。</p>
A.-4,4
B.(0,+∞]
C.0,4
D.(0,4)
答:————
8.[单选题] <p><img height="60" width="186" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/627(1).bmp" /></p>
A.不存在
B.∞
C.0
D.1
答:————
9.[单选题] <p><img height="40" width="91" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/636.bmp"/>( )。</p>
A.2
B.1/2
C.1
D.0
答:————
10.[单选题] <p><img height="42" width="284" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/648.bmp" /></p>
A.<p><img height="16" width="10" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/648a.bmp" /></p>
B.<p><img height="26" width="29" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/648b.bmp" /></p>
C.<p><img height="36" width="32" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/648c.bmp" /></p>
D.<p><img height="22" width="21" alt="" src="https://classroom.edufe.com.cn/TKGL/userfiles/image/648d.bmp" /></p>
答:————
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