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In which of the following type of matrix inverse does not exist always (a) idempotent (b) orthogonal (c) involutary (d) None of these Please reply very fast it is too much important for me 

 
 
In which of the following type of matrix inverse does not exist always  
(a) idempotent   (b) orthogonal (c) involutary  (d) None of these                       Please reply very fast it is too much important for me 
      



Grade:11

1 Answers

manjula
14 Points
5 years ago
if is idempotent of rank , there exists a orthogonal matrix where is a diagonal matrix with the first leading diagonal elements and the remainder.

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