diketahui vektor a = 1 + 2 - 3k dan b = 3i - j - 2k tentukanlah a + b ? diberikan vektor p = (5/7) dan q = (3/2),tentukan hasil kali vektor p dan q ?

a = i + 2j - 3k
b = 3i - j - 2k
a + b = (i + 2j - 3k) + (3i - j - 2k) = 4i + j - 5k

p = (5, 7)
q = (3, 2)
p.q = 5(3) + 7(2) = 15 + 14 = 29

A = 1 + 2 - 3k ==> i + 2j - 3k
B = 3i - j - 2k

A + b = i + 2j - 3k + (3i - j - 2k)
= i + 2j - 3k + 3i - j - 2k
= 4i + j - 5k

P = 5/7 {5,7}
q = 3/2 {3 , 2}

P×q =
(5,7) × (3,2) =
(5×3) + (7×2) =
15 + 14 =
29