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If an upper triangular matrix A=[a](nxxn...

If an upper triangular matrix `A=[a]_(nxxn)` the elements `a_(1)=0` for

A

it is a square matrix and `a_(ij) =0,iltj`

B

it is a square matrix and `a_(ij) =0,igtj`

C

it is not a square matrix and `a_(ij)=0,igtj`

D

it is not a square matrix and `a_(ij) =0,iltj`

Text Solution

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The correct Answer is:
B
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