# Question: 6 given the 3 3 matrix a ...

###### Question details

6. Given the 3 × 3 matrix A = −3 2 −3 2 3 −8 3 −2 3 and the vector x = 3 8 1 in R 3 , calculate Ax

(a) as a linear combination of columns of A

(b) with entries as dot products of rows of A and vector x