Q 1: If A is of order 2 ´ 5 and B is of order 5 ´ 4, then the order of AB is ________. 4 ´ 2 5 ´ 2 2 ´ 4 2 ´ 5

Q 2: (AB)^{} = ________. A^{}B^{} B^{}A^{}

Q 3: A square matrix whose determinant is nonzero is called a _________ matrix. singular nonsingular

Q 4: If A^{T} = A, then A is called _______. scalar matrix symmetric matrix none of these skew symmetric matrix

Q 5: (AB)^{T} = ________. B^{T}A^{T} A^{T}B^{T}

Q 6: A matrix has inverse if it is ________ matrix. nonsingular singular

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