Which of the following statements are correct?
A. If and are square matrices of same order, then is a skew symmetric matrix.
B. The number of all possible matrices of order with each entry either –1 or 1, is 64.
C. If is an invertible matrix, then is also invertible.
D. If and are square matrices of the same order, then .
Choose the correct answer from the options given below:
Which of the following statements are correct?
A. If and are square matrices of same order, then is a skew symmetric matrix.
B. The number of all possible matrices of order with each entry either –1 or 1, is 64.
C. If is an invertible matrix, then is also invertible.
D. If and are square matrices of the same order, then .
Choose the correct answer from the options given below:
Solution
✅ Correct Option: 3
A: , so it is skew symmetric. B: a matrix has 6 entries with 2 choices each, giving . C: . D is false since .
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