Question

if A is a matrix of order 2*2 ie 2 -3 -4 7 then 2A inverse is?

Answer 1

the matrix is. {2 3
4. 7}.

now we will multiply it by 2.

so the matrix will be

{4. 6
8. 14}

Answer 2

-2/13 * [2 -7
-3 4]
may be the answer.