1. If A is a symmetric matrix, then At = b. |A|| A . d....
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1. If A is a symmetric matrix, then At = b. |A|| A с. О d. diagonal matrix а. 2. Additive inverse of a matrix A is A b. |A|| с. А2 d. Adj(A)/ |A| а. 3. If AB exists, then (AB)-1 is A-1B-1 b. В-ТА-1 c. AB d. A or B а. 4. If A and B are matrices, then which from the following is true? b. (A)t # A a. A+B + B+A с. АВ # BA d. all are true 5. If A is a matrix of order m x n and B is a matrix of order n x p then order of AB is b. рхп с. пхр d. m x p а. рxm 1. If A is a symmetric matrix, then At = b. |A|| A с. О d. diagonal matrix а. 2. Additive inverse of a matrix A is A b. |A|| с. А2 d. Adj(A)/ |A| а. 3. If AB exists, then (AB)-1 is A-1B-1 b. В-ТА-1 c. AB d. A or B а. 4. If A and B are matrices, then which from the following is true? b. (A)t # A a. A+B + B+A с. АВ # BA d. all are true 5. If A is a matrix of order m x n and B is a matrix of order n x p then order of AB is b. рхп с. пхр d. m x p а. рxm
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