Which of the following statements is tru...

Which of the following statements is true?

A

Every zero matrix is a square matrix

B

A unit matrix is a diagonal matrix

C

`[(1,0),(0,1)]` is the identity matrix for additionn of `2xx2` matrix

D

`[(4,x),(1,3)]=[(4,5),(1,0)]` if x=5

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The correct Answer is:

B

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S CHAND IIT JEE FOUNDATION-MATRICES -QUESTION BANK -14

The order of the matric [(-1),(3),(4)] is ,
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A square matrix A has 9 elements. What is the possible order of A?
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The matrix [(-12),(10),(13),(4)] is a
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[(1,0,0),(0,4,0),(0,0,5)] is an
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Which of the following statements is true?
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If [(2x,3),(0,y-1)]=[(x-3,3),(0,2)] then the values of x and y respect...
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If A=[a(ij)](mxxn),B=[b(ij)](mxxn) then the element C(23) of the matri...
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Given matrix A=[(3),(2)] and B=[(-2),(-1)] find the matrix X such that...
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If A=[(x,y),(z,w)],B=[(x,-y),(-z,w)] and C=[(-2x,0),(0,-2w)] then A+...
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If [(2,-1),(2,0)]+2A=[(-3,5),(4,3)] the matrix A equals
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Given A=[(2,-1),(2,0)],B[(-3,2),(4,0)] and C=[(1,0),(0,2)], find the m...
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A 2xx2 matrix whose elements a(ij) are given by a(ij)=i-j is
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The values of x and y respectively if [(2x+y),(3x-2y)]=[(5),(4)] are :
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Solve the matrix equation [(2,1),(5,0)]-3X=[(-7,4),(2,6)]
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