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KUMAR PRAKASHAN-MATRICES -Solutions of NCERT Exemplar Problems (True /False)
- A matrix denotes a number .
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Playing Now - Matrices of any order can be added .
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Play - Two matrices are equal if they have same number of rows and same numb...
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Play - Matrices of different order can not be subtracted .
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Play - Matrix addition is associative as well as commutative.
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Play - Matrix multiplication is commutative .
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Play - A square matrix where every element is unity is called an identity mat...
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Play - If A and B are two square matirces of the same order , then A+B=B+A.
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Play - If A and B are two matrices of the same order , then A-B=B-A.
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Play - If matrix AB=O , then A=O or B=O or both A and B are null matrices .
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Play - Transpose of a column matrix is a column matrix .
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Play - If A and B are two square matrices of the same order , then AB=Ba.
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Play - If each of the three matrices of the same order are symmetric , then t...
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Play - If A and B are two matrices of the same order , then (AB) =A'B.
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Play - If (AB)=B'A', where A and B are not square matrices , then number of r...
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Play - If A , B and C are square matrices of same order, then AB=AC always i...
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Play - A A' is always a symmetric matrix for any matrix A .
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Play - If A=[{:(2,3,-1),(1,4,2):}]andB=[{:(2,3),(4,5),(2,1):}] , then AB and...
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Play - If A is skew symmetric matrix , then A^(2) is a symmetric matrix .
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Play - (AB)^(-1)=A^(-1)*B^(-1) , where A and B are invertible matrices satisf...
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