Diketahui a = (-1, 2, 3), b = (2, 0, 2), dan c = (1, -3, 4). Tentukan a (b – c)
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Jawaban:
a (b - c) = -1
Penjelasan dengan langkah-langkah:
a (b - c) = .....?
b - c = (2, 0, 2) - (1, -3, 4)
= (1, 3, -2)
a × (1, 3, -2)
(-1, 2, 3) × (1, 3, -2)
= -1 + 6 - 6
= -1
Maaf kalo salah...
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