larey
larey
09.01.2021 • 
Mathematics

9 f
8
7.
6+
5
om a
4
3+
2
1
+3
2 3 4 5 6 7 8 9
-9-8-7-6 -5 -4 -3 -2
1
om
-2-
-3
-4.
-5
-6+
le
-7
-8
rom a
-9
eview

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