Ответ:
v - корень
1) СВ=(3-1;1-5) = (2;-4).
|CB| = v2²+(-4)² = v4+16 = v20 = 2v5.
2) AC=(1-(-2);5-(-1)) = (3;6).
|AC| = v3²+6² = v9+36 = v45 = 3v5.
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Answers & Comments
Ответ:
v - корень
1) СВ=(3-1;1-5) = (2;-4).
|CB| = v2²+(-4)² = v4+16 = v20 = 2v5.
2) AC=(1-(-2);5-(-1)) = (3;6).
|AC| = v3²+6² = v9+36 = v45 = 3v5.