Mathematics
Two matrices A and B each of order 2 x 2.
Assertion (A) : A X B = 0 ⇒ A = 0 or B = 0.
Reason (R) : Let ≠ 0 and ≠ 0 but A x B = = 0.
A is true, R is false.
A is false, R is true.
Both A and R are true and R is correct reason for A.
Both A and R are true and R is incorrect reason for A.
Matrices
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Answer
It is not necessarily true in case of matrices that if A X B = 0
Then, either A = 0 or B = 0.
So, assertion (A) is false.
According to reason, and
So, reason (R) is true.
Hence, option 2 is the correct option.
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