Объяснение:
[tex]d = √((-2 - (-1))² + (0 - 2)² + (7 - 5)²) = √(1² + (-2)² + 2²) = √9 = 3.[/tex]
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Объяснение:
[tex]d = √((-2 - (-1))² + (0 - 2)² + (7 - 5)²) = √(1² + (-2)² + 2²) = √9 = 3.[/tex]