chalte chalte weird terminology

Waht is unitary,nilpotent,orthogonal ,involuntary matrices

Are these in course of AIEEE atleast

2 Answers

unitary mean det value of matrix is 1

nilpotent means thr exist a value of m such that A^m =0

orthogonal......AA'=I ........A' =transpose of A

invvolutary mean s d matrix remains unchnges wat evr operaions u perform like say squarin ...etc

this was in iit

can u expln orthogonal once more

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