Объяснение:
3а (-3;6)
2b (4;-8)
3а+2b (1;-2)
1/2a (-1/2;1)
-1/4b (1/2;-1)
1/2a-1/4b (0;0)
-a (1;-2)
5b (10;-20)
-a+5b (11;-22)
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Объяснение:
3а (-3;6)
2b (4;-8)
3а+2b (1;-2)
1/2a (-1/2;1)
-1/4b (1/2;-1)
1/2a-1/4b (0;0)
-a (1;-2)
5b (10;-20)
-a+5b (11;-22)