Loading...
Line Segment AB = 24
保存副本
Desmos标志
登录
注册
表达式18: "B" Subscript, 2 , Baseline equals negative "R"
B
2
=
−
R
equals
=
negative 11.1 3 4 6 1 2 3 3 4 4
−
1
1
.
1
3
4
6
1
2
3
3
4
4
18
表达式19: "C" Subscript, 1 , Baseline equals "B" Subscript, 1 , Baseline plus 15
C
1
=
B
1
+
1
5
equals
=
negative 12.8 5 7 1 4 2 8 5 7 1
−
1
2
.
8
5
7
1
4
2
8
5
7
1
19
表达式20: "C" Subscript, 2 , Baseline equals negative "R"
C
2
=
−
R
equals
=
negative 11.1 3 4 6 1 2 3 3 4 4
−
1
1
.
1
3
4
6
1
2
3
3
4
4
20
表达式21: "D" Subscript, 1 , Baseline equals "O" Subscript, 1 , Baseline
D
1
=
O
1
equals
=
0
0
21
表达式22: "D" Subscript, 2 , Baseline equals negative "R"
D
2
=
−
R
equals
=
negative 11.1 3 4 6 1 2 3 3 4 4
−
1
1
.
1
3
4
6
1
2
3
3
4
4
22
表达式23: "E" Subscript, 1 , Baseline equals "C" Subscript, 1 , Baseline plus left parenthesis, "C" Subscript, 1 , Baseline minus "I" Subscript, 1 , Baseline , right parenthesis cosine left parenthesis, 180 minus "B" Subscript, "C" "E" , Baseline , right parenthesis
E
1
=
C
1
+
C
1
−
I
1
c
o
s
1
8
0
−
B
C
E
equals
=
negative 12.3 0 6 1 2 2 4 4 9
−
1
2
.
3
0
6
1
2
2
4
4
9
23
表达式24: "E" Subscript, 2 , Baseline equals "C" Subscript, 2 , Baseline plus left parenthesis, "C" Subscript, 1 , Baseline minus "I" Subscript, 1 , Baseline , right parenthesis sine left parenthesis, 180 minus "B" Subscript, "C" "E" , Baseline , right parenthesis
E
2
=
C
2
+
C
1
−
I
1
s
i
n
1
8
0
−
B
C
E
equals
=
negative 7.3 1 7 0 3 0 9 6 2 5 9
−
7
.
3
1
7
0
3
0
9
6
2
5
9
24
表达式25: "F" Subscript, 1 , Baseline equals "C" Subscript, 1 , Baseline plus StartFraction, "D" Subscript, 1 , Baseline minus "C" Subscript, 1 , Baseline Over "C" Subscript, 1 , Baseline minus "I" Subscript, 1 , Baseline , EndFraction left parenthesis, "E" Subscript, 1 , Baseline minus "C" Subscript, 1 , Baseline , right parenthesis
F
1
=
C
1
+
D
1
−
C
1
C
1
−
I
1
E
1
−
C
1
equals
=
negative 11.0 2 0 4 0 8 1 6 3 3
−
1
1
.
0
2
0
4
0
8
1
6
3
3
25
表达式26: "F" Subscript, 2 , Baseline equals "C" Subscript, 2 , Baseline plus StartFraction, "D" Subscript, 1 , Baseline minus "C" Subscript, 1 , Baseline Over "C" Subscript, 1 , Baseline minus "I" Subscript, 1 , Baseline , EndFraction left parenthesis, "E" Subscript, 2 , Baseline minus "C" Subscript, 2 , Baseline , right parenthesis
F
2
=
C
2
+
D
1
−
C
1
C
1
−
I
1
E
2
−
C
2
equals
=
1.5 9 0 6 5 8 9 0 4 9 1
1
.
5
9
0
6
5
8
9
0
4
9
1
26
表达式27: "I" Subscript, 1 , Baseline equals "B" Subscript, 1 , Baseline plus StartFraction, 12 left parenthesis, "O" Subscript, 1 , Baseline minus "B" Subscript, 1 , Baseline , right parenthesis Over 12 plus 18 , EndFraction
I
1
=
B
1
+
1
2
O
1
−
B
1
1
2
+
1
8
equals
=
negative 16.7 1 4 2 8 5 7 1 4 3
−
1
6
.
7
1
4
2
8
5
7
1
4
3
27
表达式28: "I" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline plus StartFraction, 12 left parenthesis, "O" Subscript, 2 , Baseline minus "B" Subscript, 2 , Baseline , right parenthesis Over 12 plus 18 , EndFraction
I
2
=
B
2
+
1
2
O
2
−
B
2
1
2
+
1
8
equals
=
negative 6.6 8 0 7 6 7 4 0 0 6 2
−
6
.
6
8
0
7
6
7
4
0
0
6
2
28
表达式29: "T" Subscript, 1 , Baseline equals "B" Subscript, 1 , Baseline plus left parenthesis, "D" Subscript, 1 , Baseline minus "B" Subscript, 1 , Baseline , right parenthesis cosine 2 "D" Subscript, "B" "O" , Baseline
T
1
=
B
1
+
D
1
−
B
1
c
o
s
2
D
B
O
equals
=
negative 7.6 7 4 9 2 7 1 1 3 7
−
7
.
6
7
4
9
2
7
1
1
3
7
29
表达式30: "T" Subscript, 2 , Baseline equals "B" Subscript, 2 , Baseline plus left parenthesis, "D" Subscript, 1 , Baseline minus "B" Subscript, 1 , Baseline , right parenthesis sine 2 "D" Subscript, "B" "O" , Baseline
T
2
=
B
2
+
D
1
−
B
1
s
i
n
2
D
B
O
equals
=
8.0 6 6 9 1 3 0 1 7 7 6
8
.
0
6
6
9
1
3
0
1
7
7
6
30
Graphs
Graphs
对学生隐藏该文件夹。
31
表达式32: "y" less than 25
y
<
2
5
32
表达式33: left parenthesis, "R" cos "t" , "R" sin "t" , right parenthesis
R
c
o
s
t
,
R
s
i
n
t
0
0
定义域t最小值：
less than or equal to "t" less than or equal to
≤
t
≤
定义域t最大值： 360
3
6
0
33
表达式34: left parenthesis, "I" Subscript, 1 , Baseline plus "R" Subscript, 1 , Baseline cos "t" , "I" Subscript, 2 , Baseline plus "R" Subscript, 1 , Baseline sin "t" , right parenthesis
I
1
+
R
1
c
o
s
t
,
I
2
+
R
1
s
i
n
t
0
0
定义域t最小值：
less than or equal to "t" less than or equal to
≤
t
≤
定义域t最大值： 360
3
6
0
34
表达式35: polygon left parenthesis, "B" , "O" , "B" , "C" , "A" , "C" , "D" , "O" , "T" , right parenthesis
p
o
l
y
g
o
n
B
,
O
,
B
,
C
,
A
,
C
,
D
,
O
,
T
35
Points
Points
对学生隐藏该文件夹。
36
51
技术支持
技术支持
O
A
B
C
D
E
F
I
T
AB = ?
BI = 12
IO = 18
BC = 15
"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
+
登录
或
注册
保存你的图表！
新建空白图表
示例
直线：斜截式
示例
直线：点斜式
示例
直线：两点式
示例
抛物线：标准式
示例
抛物线：顶点式
示例
抛物线：标准式和切线
示例
三角函数：周期和幅值
示例
三角函数：相位
示例
三角函数：波的干涉
示例
三角函数：单位圆
示例
圆锥曲线：圆
示例
圆锥曲线：抛物线和焦点
示例
圆锥曲线：椭圆和交点
示例
圆锥曲线：双曲线
示例
极坐标系：玫瑰线
示例
极坐标系：等角螺线
示例
极坐标系：蚶线
示例
极坐标系：圆锥曲线
示例
参数：导入
示例
参数：摆线
示例
变换：函数平移
示例
变换：函数缩放
示例
变换：函数逆变换
示例
统计：线性回归
示例
统计：安斯库姆四重奏
示例
统计：四阶多项式
示例
列表：正弦曲线家族
示例
列表：曲线拼接
示例
列表：根据点列表绘制线
示例
微积分：导数
示例
微积分：割线
示例
微积分：切线
示例
微积分：sin(x)的泰勒展开式
示例
微积分：积分
示例
微积分: 边界可调整的积分
示例
微积分: 微积分基本定理
示例
服务条款
|
隐私政策
