The solution X of the matrix equation AX = B, where A is an invertible matrix, is given by
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → $X=A^{-1} B$
$AX = B$
so pre multiplication with $A^{-1}$
$A^{-1}AX = A^{-1}B$
$⇒X=A^{-1}B$