Question

Construct a 4 × 3 matrix whose elements are

 a_ij = i 

Answer 1

`a_(ij)=i`

Here,

`a_11=1,`

`a_12=1`

`a_13=1`

`a_21=2`

`a_22=2`

`a_23=2`

`a_31=3`

`a_31=3`

`a_33=3`

`a_41=4`

`a_42=4`

and

`a_43=4`

So, the required matrix is `[[1  1  1],[2  2  2],[3  3  3],[4  4  4]]`