please help to answer below questions. Multiple answers can also be possible.
4. Since the matrix B is non singular so columns of B are linearly independent .
Now we have replaced br by
So our required matrix is non-singular if it's columns are still independent so is non zero , otherwise r-th column can be written as linear combination of others .
Hence ,
Answer : b , c .
1. Suppose m n .
First we have to check all n × n block determinant , then all n-1 × n-1 block determinant ,......, all 2×2 determinant.
So number of times to determine determinant is ,
=
Similarly if n m then number of times is ,
Hence ,
Answer : a , d .
3 . Given ,
A2 = A
Or , det(A2) = det(A)
Or , (detA)2 = det(A)
Or , det(A) = 1 or 0
Hence ,
Answer : c .
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If you have any doubt please comment.
please help to answer below questions. Multiple answers can also be possible. D Question 4 1 pts Let B-|b, b...
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