Jika vektor a = (4, -2, 1) dan vektor b= (3,2,-2), hasil vektor a dikali (vektor a + vektor b) =
Matematika
zhafirahalhazmi
Pertanyaan
Jika vektor a = (4, -2, 1) dan vektor b= (3,2,-2), hasil vektor a dikali (vektor a + vektor b) =
1 Jawaban
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1. Jawaban dzikru07
a+b=(7,0,-1)
a.(a+b)= (4,-2,1) kali (7,0,-1)
=4.7+(-2).0+1(-1)
=28+0-1
=27