MATRICES Grade12

 

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The number of all possible matrix of order 2X3 with each enty 0 or 1 is

• 12

• 64

• 36

• None of these

If A and B areany two matrices ,then

• AB=BA

• AB=I

• AB=0

• AB may or may not be defined

• $A^2=0$

• $A^3=0$

• $A'=A$

• None of these

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Let A be a 3X4 matrix,then each column of A contains (a)   elements

If A is of order mXn and B is of order pXq ,then AB is defined only if

(a)  

If the matrix A is both symmetric and skew symmetric then A is a (a)   matrix

(a)  

(a)