Diketahui vektor p=3i+5j dan q=(-2i,4j).tentukan:a).P+3q. b)3p-2q

◾ Materi : Vektor
◾ Sub materi : Operasi Vektor
◾ Mapel : Matematika
◾ Keyword : Vektor

Jawab :
p = 3i + 5j
q = -2i + 4j

a) p+3q
= 3i+5j + 3(-2i+4j)
= 3i+5j-6i+12j
= 3i-6i+5j+12j
= -3i+17j

b) 3p-2q
= 3(3i+5j) - 2(-2i+4j)
= 9i+15j+4i-8j
= 9i+4i+15j-8j
= 13i+7j

semoga membantu
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-vin

a. P+3q = (3i,5j)+3(2i4j) = (3i,5j)+(6i,12j) = (3+6)i,(5+12)j = 9i,17j

b. 3p-2q = 3(3i,5j)-2(6i,12j) = (9i,15j)-12i,-24j) = (9-12)i+(15-24)j = -3i,+9j

semoga bermanfaat ..