Cari satu-satu komponen vektor nya.
Vektor u = -4i + 2j
Vektor v = 3i + 2j
Vektor w = -i - 3j
Vektor 2u = 2(-4)i + 2(2)j = -8i + 4j
Vektor 3v = 3(3)i + 3(2)j = 9i + 6j
Vektor 4w = 4(-1)i + 4(-3)j = -4i - 12j
2u - 3v + 4w :
= (-8i + 4j) - (9i + 6j) + (-4i - 12j)
= -8i + 4j - 9i - 6j - 4i - 12j
= -21i - 14j
Jadi jawabannya adalah C.
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Cari satu-satu komponen vektor nya.
Vektor u = -4i + 2j
Vektor v = 3i + 2j
Vektor w = -i - 3j
Vektor 2u = 2(-4)i + 2(2)j = -8i + 4j
Vektor 3v = 3(3)i + 3(2)j = 9i + 6j
Vektor 4w = 4(-1)i + 4(-3)j = -4i - 12j
2u - 3v + 4w :
= (-8i + 4j) - (9i + 6j) + (-4i - 12j)
= -8i + 4j - 9i - 6j - 4i - 12j
= -21i - 14j
Jadi jawabannya adalah C.