Question

Soal, tentang vektor ,hitunglah :

Answer 1

A = [2,3]
b = [-2,4]
a. -a = -[2,3] = [-2,-3]
b. 3a = 3[2,3] = [6,9]
c. -4b = -4[-2,4] = [8,-16]
d. b = [-2,4] = [1,-2]

Answer 2

A = (2 , 3) ; b = ( -2 , 4)
- a = - (2 . 3)
     = ( -2 , - 3)
3.a = 3(2 , 3 )
     = (6 , 9)
-4b = -4(-2 , 4)
     = (8 , 16)
-1/2b = -1/2(-2 , 4)
        = (1 , 2)