12593
9
2129
2760
2
334
3506
0
253
1674
2
153
1186
1
101
1426
1
92
1898
0
76
959
0
61
748
0
54
879
0
52
837
15
51
832
4
47
489
0
37
816
0
36
977
0
35
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Keyword(s): 余弦定理