Question

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

(i) a_ij = i . j

Answer 1

Here,

`aij= i . j,1≤ i ≤ 2 and  1≤ j ≤ 3 `

`a_11= 1 xx 1 = 1 , a_12 = 1xx 2 = 2 , a_13= 1xx3=3`

`a_21=2xx1=2, a_22=2xx2=4 and a_23=2xx3=6 `

Required matrix =A =`[[1,2,3],[2,4,6]]`