a
1
a
1
a
12
,
A
21
5
∗
2
=
10
4
3
,
10
4
a
+
b
‾
a
+
b
‾
x
1
+
x
2
+
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3
⏞
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1
+
x
2
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3
⏟
A
B
→
A
B
←
2
3
,
4
5
,
6
7
∫
,
∫
2
3
t
d
t
,
∫
4
5
x
d
x
∑
i
=
1
10
x
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∑
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=
0
100
X
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∏
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10
x
i
a
b
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d
1
2
3
4
5
6
[
1
2
3
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5
6
]
∣
1
2
3
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5
6
∣
a^1\\ a_1\\ a^{12},A_{21}\\ \sqrt{5}*\sqrt{2}=\sqrt{10}\\ \sqrt[3]{4},\sqrt[4]{10}\\ \underline{a+b}\\ \overline{a+b}\\ \overbrace{x_1+x_2+x_3}\\ \underbrace{x_1+x_2+x_3}\\ \overrightarrow{AB}\\ \overleftarrow{AB}\\ \frac{2}{3},\frac{4}{5},\frac{6}{\sqrt{7}}\\ \int,\int_{2}^{3}tdt,\int_{4}^{5}xdx\\ \sum_{i=1}^{10}x_i,\sum_{i=0}^{100}X_i\\ \prod_{1}^{10}x_i\\ a \quad b \quad c \quad d\\ \begin{matrix} 1 & 2 & 3\\ 4 & 5 & 6 \end{matrix}\\ \left[\begin{matrix} 1 & 2 & 3\\ 4 & 5 & 6 \end{matrix}\right]\\ \left|\begin{matrix} 1 & 2 & 3\\ 4 & 5 & 6 \end{matrix}\right|
a1a1a12,A215∗2=1034,410a+ba+bx1+x2+x3x1+x2+x3ABAB32,54,76∫,∫23tdt,∫45xdxi=1∑10xi,i=0∑100Xi1∏10xiabcd142536[142536]142536