Question

2. If A = [aij] is a 2 × 3 matrix, such that aij = \(\frac{(-i+2 j)^{2}}{5}\).then a23 is

Maths MCQs for Class 12 with Answers Chapter 3 Matrices 1

Answer 1

Answer:

Given for a matrix A=[a

ij

] is a 2×2 matrix such that a

ij

=i+2j.

Then a

11

=1+2⋅1=3, a

12

=1+2⋅2=5, a

21

=2+2⋅1=4 and a

22

=2+2⋅2=6.

So A=[

3

4

5

6

].