表达式11: left parenthesis, "x" Subscript, 2 , Baseline , "y" Subscript, 2 , Baseline "t" , right parenthesisx2,y2t
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
11
定义域t最大值：
11
表达式12: left parenthesis, "x" Subscript, 2 , Baseline , "y" Subscript, 2 , Baseline plus "y" Subscript, 1 , Baseline "t" , right parenthesisx2,y2+y1t
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
11
定义域t最大值：
12
表达式13: "R" equals StartFraction, "y" Subscript, 1 , Baseline plus "y" Subscript, 2 , Baseline Over 2 , EndFractionR=y1+y22
equals=
2.52.5
13
表达式14: left parenthesis, "x" Subscript, 2 , Baseline plus "R" cos "t" , StartFraction, "y" Subscript, 1 , Baseline plus "y" Subscript, 2 , Baseline Over 2 , EndFraction plus "R" sin "t" , right parenthesisx2+Rcost,y1+y22+Rsint
定义域t最小值： negative StartFraction, pi Over 2 , EndFraction−π2
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： StartFraction, pi Over 2 , EndFractionπ2
14
表达式15: left parenthesis, 0 , left parenthesis, StartAbsoluteValue, "x" Subscript, 1 , Baseline , EndAbsoluteValue times "x" Subscript, 2 , Baseline , right parenthesis "t" , right parenthesis0,x1·x2t
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
11
定义域t最大值：
15
表达式16: left parenthesis, "x" Subscript, 2 , Baseline plus left parenthesis, StartAbsoluteValue, "x" Subscript, 1 , Baseline , EndAbsoluteValue times "x" Subscript, 2 , Baseline , right parenthesis "t" , "y" Subscript, 2 , Baseline , right parenthesisx2+x1·x2t,y2
00
定义域t最小值：
less than or equal to "t" less than or equal to≤t≤
11
定义域t最大值：
16
Points
对学生隐藏该文件夹。
17
`\textcolor{black}{\left(\ x_1\ ;\ y_1\ \right)=(\ ${x1}\ ;\ ${y1}\ )}` left parenthesis, "x" Subscript, 1 , Baseline , "f" left parenthesis, "x" Subscript, 1 , Baseline , right parenthesis , right parenthesisx1,fx1
标签:
equals=
left parenthesis, negative 2 , 4 , right parenthesis−2,4
18
`\textcolor{black}{\left(\ x_2\ ;\ y_2\ \right)=(\ ${x2}\ ;\ ${y2}\ )}` left parenthesis, "x" Subscript, 2 , Baseline , "f" left parenthesis, "x" Subscript, 2 , Baseline , right parenthesis , right parenthesisx2,fx2
标签:
equals=
left parenthesis, 1 , 1 , right parenthesis1,1
19
`\textcolor{black}{\left(\ 0\ ;\ \left|\ x_1\right|\cdot x_2\ \right)=(\ 0\ ;\ ${X}\ )}` left parenthesis, 0 , StartAbsoluteValue, "x" Subscript, 1 , Baseline times "x" Subscript, 2 , Baseline , EndAbsoluteValue , right parenthesis0,x1·x2
标签:
equals=
left parenthesis, 0 , 2 , right parenthesis0,2
20
表达式21: "X" equals StartAbsoluteValue, "x" Subscript, 1 , Baseline , EndAbsoluteValue times "x" Subscript, 2 , BaselineX=x1·x2
equals=
22
21
隐藏 标签 left parenthesis, "x" Subscript, 2 , Baseline , "y" Subscript, 1 , Baseline plus "y" Subscript, 2 , Baseline , right parenthesisx2,y1+y2
标签
equals=
left parenthesis, 1 , 5 , right parenthesis1,5
22
23
技术支持
技术支持
Start black, left parenthesis, "x" Subscript, 1 , Baseline ; "y" Subscript, 1 , Baseline , right parenthesis equals ( negative 2 ; 4 ) End blackx1;y1=(−2;4)
Start black, left parenthesis, "x" Subscript, 2 , Baseline ; "y" Subscript, 2 , Baseline , right parenthesis equals ( 1 ; 1 ) End blackx2;y2=(1;1)
Start black, left parenthesis, 0 ; StartAbsoluteValue, "x" Subscript, 1 , Baseline , EndAbsoluteValue times "x" Subscript, 2 , Baseline , right parenthesis equals ( 0 ; 2 ) End black0;x1·x2=(0;2)
