Ответ:
Объяснение:
Sₓ = X₂ - X₁ = 1 - (-2) = 3
Sy = Y₂ - Y₁ = 4 - 7 = - 3
| S | = √ (Sₓ² + Sy²) = √ (3² + (-3)²) = √ (9 + 9) = 3·√2
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Ответ:
Объяснение:
Sₓ = X₂ - X₁ = 1 - (-2) = 3
Sy = Y₂ - Y₁ = 4 - 7 = - 3
| S | = √ (Sₓ² + Sy²) = √ (3² + (-3)²) = √ (9 + 9) = 3·√2