Q. 103.7( 6 Votes )

If show that A2 = A.

Answer :

Given :

Matrix A is of order 3 3

To show : A2 = A

Formula used : 3x3-matrix-formula.png

If A is a matrix of order a b and B is a matrix of order c d ,then matrix AB exists and is of order a d ,if and only if b = c

A2 =

A2 =

A2 = =

A2 = A =

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