Question

Number of different matrices that can be formed with elements - 1,0,1,2 each matrix having 4 elements is (A) 3 x 2⁴ (B) 2 x 4⁴(C) 3 x 4⁴(D) 4⁴​

Answer 1

Answer:

Correct option is

C

3×4

4

There can be 3 types of such matrices such as 1×4,2×2,4×1

and in every such matrix,there are four elements each element in the matrix is independent and has 4 different choices

∴ The number of different matrices that can be formed =3×4

4

Answer 2

Answer:

C

Step-by-step explanation:

there can be 3 types of such matrices such as 1 × 4 , 2×2 , 4×1 .

and in every such matrix, there are four elements. each elements in the matrix is independent and has 4 different choices.

the number of different matrices that can be formed . answer is - C