Question

Write the number of possible matrices of order 2×3 with each entry as 2 or -1 or 0

Answer 1

Answer:

⇒ The order of matrix =2×2.

⇒ Number of elements =2×2=4

In which 1,2,3 entry can be filled and can repeat.

⇒ Number of entries =3

⇒ Number of possible matrices =(3)4=3×3×3×3=81