1. Diketahui titik-titik A (2, 5, 2), B (3, 2, -1), C (2, 2, 2). Jika a = AB dan b = CA dan c = b - a maka vektor c adalah...
Matematika
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Pertanyaan
1. Diketahui titik-titik A (2, 5, 2), B (3, 2, -1), C (2, 2, 2). Jika a = AB dan b = CA dan c = b - a maka vektor c adalah...
1 Jawaban
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1. Jawaban Machmud989
AB = b - a = [3-2, 2-5, -1-2] = [1,-3,-3]
CA = a - c = [2-2, 5-2, 2-2] = [0,-3,0]
Jika A = AB dan b = CA maka
c = b - a = [0-1, -3-(-3), 0-(-3)] = [-1,0,3]