Question

Vectors
p=(4,3) and q=(-2,7), find 4p -2q​

Answer 1

(20, -2)

Explanation:

Given the coordinate vectors p=(4,3) and q=(-2,7),

4p - 2q = 4(4, 3)- 2(-2, 7)

4p - 2q = (16, 12) - (-4, 14)

4p - 2q = (16+4, 12-14)

4p - 2q =(20, -2)

hence the required vector is (20, -2)