Question

What is the number of all possible matrices of order 2 x 2 with each entry 0 or 1 ? *?

Answer 1

Answer:

16 ways

Step-by-step explanation:

total number of elements of 2*2 matrices is 4

it means you can fill in 4 elements

now that elements can be 0 or 1

hence, (_)(_)(_)(_) can be filled by 0 or 1

hence by permutation and combinations we have

(2)(2)(2)(2)=16