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Question
Construct a 3 × 4 matrix A = [aij] whose elements aij are given by:
aij = i + j
Solution
aij = i + j
Here,
`a_11= 1+1 = 2 , a_12= 1+2=3 , a_13= 1+3=4 , a_14 = 1+4= 5`
`a_21= 2+1= 3 , a_22 = 2+2 =4 , a_23 = 2+3=5 , a_24= 2+4=6`
`a_31= 3+1=4 , a_32=3+2 = 5, a_33= 3+3 = 6 , a_34 3+4=7`
So, the required matrix is `[[2 3 4 5],[3 4 5 6],[4 5 6 7]]`
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