diketahui a=(-3,2),b=(6,9),c=(-2,-1),berapakah a-b+2c...
Matematika
ImammulHaq
Pertanyaan
diketahui a=(-3,2),b=(6,9),c=(-2,-1),berapakah a-b+2c...
2 Jawaban
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1. Jawaban wilimunchenesti
a-b+2c=
(-3,2)-(6,9)+2(-2,1)=
(-3,2)-(6,9)+(-4,-2)=
(-13,-9)
JADIKAN YG TERBAIK YAAAAAAAAAAA -
2. Jawaban ErikCatosLawijaya
Mapel : Matematika
Kelas : X SMA
Bab : Vektor
Pembahasan :
a = [-3 2]
b = [6 9]
c = [-2 -1]
Substitusi ke ↓↓↓
a - b + 2c
= [-3 2] - [6 9] + 2[-2 -1]
= [-3 2] - [6 9] + [-4 -2]
= [-13 -9]
= -13i - 9j