Question

Construct a 2 × 3 matrix whose elements a_ij are given by :

(ii) a_ij = 2i − j

Answer 1

`a_(ij)= 2i- j `

`a_11=2(1)-1=2-1=1, a_12=2(1)-2=2-2=0, a_13=2(1)-3=2-3=-1`

`a_21=2(2)-1=4-1=3, a_22=2(2)-2=4-2=2 and a_23=2(2)-3=4-3=1`

Required matrix = A = `[[1,0,-1],[3,2,1]]`