Question

A =
2
4
b =
(3
-2
Work out 3a + b as a column vector.

Answer 1

As a column vector 3a +b = (9,10)

Explanation:

A =

(2

4)

b =

(3

-2)

3a = 3*2 = 6

3*4= 12

3a + b = 6. + 3

12. +(-2)

3a +b = 9

10

As a column vector 3a +b = (9,10)