Ответ:
a) |b| = v0²+(-3)²+2² = v9+4 = v13.
b) MN=(2-0;0-(-5);-8-1) = (2;5;-9).
|MN| = v2²+5²+(-9)² = v4+25+81 = v29+81 = v110.
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Ответ:
a) |b| = v0²+(-3)²+2² = v9+4 = v13.
b) MN=(2-0;0-(-5);-8-1) = (2;5;-9).
|MN| = v2²+5²+(-9)² = v4+25+81 = v29+81 = v110.