Объяснение:
а-b=(2-(-3);-1-(-2);3-4)=(5;1;-1)
|a-b|=√(5²+1²+(-1)²)=√(24+1+1)=√26
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Объяснение:
а-b=(2-(-3);-1-(-2);3-4)=(5;1;-1)
|a-b|=√(5²+1²+(-1)²)=√(24+1+1)=√26