P = √83 + √86 + 3√5
Пошаговое объяснение:
AB = (0 - 1; 4 - 3; -3 - 6) = (-1; 1; -9)
|AB| = √(1 + 1 + 81) = √83
BC = (7 - 0; 3 - 4; 3 - (-3)) = (7; -1; 6)
|BC| = √(49 + 1 + 36) = √86
AC = (7 - 1; 3 - 3; 3 - 6) = (6; 0; -3)
|AC| = √(36 + 0 + 9) = √45 = 3√5
P = |AC| + |AB| + |BC| = √83 + √86 + 3√5
P = √83 + √86 + 3√5
Пошаговое объяснение:
AB = (0 - 1; 4 - 3; -3 - 6) = (-1; 1; -9)
|AB| = √(1 + 1 + 81) = √83
BC = (7 - 0; 3 - 4; 3 - (-3)) = (7; -1; 6)
|BC| = √(49 + 1 + 36) = √86
AC = (7 - 1; 3 - 3; 3 - 6) = (6; 0; -3)
|AC| = √(36 + 0 + 9) = √45 = 3√5
P = |AC| + |AB| + |BC| = √83 + √86 + 3√5