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表达式23: "x" equals 0 plus .9 left brace, negative 4 less than "y" less than negative 1 , right brace
x
=
0
+
.
9
−
4
<
y
<
−
1
23
表达式24: "y" equals negative 1 left brace, negative .9 5 less than "x" less than .9 , right brace
y
=
−
1
−
.
9
5
<
x
<
.
9
24
表达式25: "x" equals 2.5 left brace, negative 2.2 less than "y" less than negative .7 , right brace
x
=
2
.
5
−
2
.
2
<
y
<
−
.
7
25
表达式26: "x" equals negative 2.5 left brace, negative 2.2 less than "y" less than negative .7 , right brace
x
=
−
2
.
5
−
2
.
2
<
y
<
−
.
7
26
表达式27: "y" equals negative 1.5 left brace, negative 3.4 less than "x" less than negative 1.7 , right brace
y
=
−
1
.
5
−
3
.
4
<
x
<
−
1
.
7
27
表达式28: "y" equals negative 1.5 left brace, negative 3.4 less than "x" less than negative 1.7 , right brace
y
=
−
1
.
5
−
3
.
4
<
x
<
−
1
.
7
28
表达式29: "x" equals 3.3 left brace, 1.7 less than "y" less than 3.8 , right brace
x
=
3
.
3
1
.
7
<
y
<
3
.
8
29
表达式30: "x" equals 2 left brace, 2.6 less than "y" less than 3.8 , right brace
x
=
2
2
.
6
<
y
<
3
.
8
30
表达式31: "y" equals 3.8 left brace, 2 less than "x" less than 3.3 , right brace
y
=
3
.
8
2
<
x
<
3
.
3
31
表达式32: "x" equals 0 left brace, .3 less than "y" less than 1.7 , right brace
x
=
0
.
3
<
y
<
1
.
7
32
表达式33: "y" equals 1 left brace, negative 1 less than "x" less than .9 , right brace
y
=
1
−
1
<
x
<
.
9
33
表达式34: "x" equals negative 1.7 left brace, negative 2.2 less than "y" less than negative .8 , right brace
x
=
−
1
.
7
−
2
.
2
<
y
<
−
.
8
34
表达式35: "y" equals negative 1.5 left brace, 1.7 less than "x" less than 3.3 , right brace
y
=
−
1
.
5
1
.
7
<
x
<
3
.
3
35
隐藏 标签 left parenthesis, .4 , negative 2.5 , right parenthesis
.
4
,
−
2
.
5
标签
36
表达式37: "x" squared plus "y" squared equals 33
x
2
+
y
2
=
3
3
37
表达式38: "x" squared plus "y" squared equals 44
x
2
+
y
2
=
4
4
38
表达式39: "x" squared plus "y" squared equals 55
x
2
+
y
2
=
5
5
39
表达式40: "x" squared plus "y" squared equals 66
x
2
+
y
2
=
6
6
40
表达式41: "x" squared plus "y" squared equals 77
x
2
+
y
2
=
7
7
41
表达式42: "x" squared plus "y" squared equals 88
x
2
+
y
2
=
8
8
42
表达式43: "x" squared plus "y" squared equals 99
x
2
+
y
2
=
9
9
43
表达式44: "x" squared plus "y" squared equals 110
x
2
+
y
2
=
1
1
0
44
表达式45: "x" squared plus "y" squared equals 120
x
2
+
y
2
=
1
2
0
45
46
技术支持
技术支持
"x"
x
"y"
y
"a" squared
a
2
"a" Superscript, "b" , Baseline
a
b
7
7
8
8
9
9
over
÷
功能
(
(
)
)
less than
<
greater than
>
4
4
5
5
6
6
times
×
| "a" |
|
a
|
,
,
less than or equal to
≤
greater than or equal to
≥
1
1
2
2
3
3
negative
−
A B C
StartRoot, , EndRoot
pi
π
0
0
.
.
equals
=
positive
+
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