Answer :

The given matrix equation is :



The first matrix is an identity matrix which is denoted by I .


Let P = and B =


Thus the equation becomes


IP = B


As we know that any matrix when multiplied with the identity matrix will be the matrix itself. But here the order of I is 3while the order of P is 3, so the order of the result matrix is 3


IP = P =


So, we have


P = B



On comparing both sides we get,



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