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Q.

If order of matrix A is 2 x 3, of matrix B is 3 x 2, and of matrix C is 3 x 3, then which one of the following is not defined? 

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a

C(A+B’)

b

C(A+B’)’

c

BAC

d

CB+A’

answer is A.

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Detailed Solution

 A+B′ is a matrix of order 2 x 3
Since C is a matrix of order  3 x 3
So, CA+B′ is not defined.

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