Which of the following statements are correct ?
A. If the product of 2 non-zero square matrices is a zero matrix, then either A is singular or B is singular
B. If A is a non singular matrix , then
C. If A is an invertible square matrix then
D. If A and B are invertible matrices then
Choose the correct answer from the options given below:
Which of the following statements are correct ?
A. If the product of 2 non-zero square matrices is a zero matrix, then either A is singular or B is singular
B. If A is a non singular matrix , then
C. If A is an invertible square matrix then
D. If A and B are invertible matrices then
Choose the correct answer from the options given below:
Solution
✅ Correct Option: 1
A is correct: if with both non-zero, neither can be invertible, so at least one is singular.
B is the standard result .
C is incorrect; the correct identity is , and division by a matrix is undefined.
D is the reversal law for inverses, which is correct.
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