Matrix A = [[24 k][2 1]]: find value of k so no inverse of A

Angela123

Junior Member
Joined
Oct 9, 2008
Messages
54
A=
[24 k
2 1]

For what value of k does the matrix shown not have an inverse?

k=?

Should I try multiplying A by A?
 
Re: Matrix

Angela123 said:
A=[24 k
2 1]

For what value of k does the matrix shown not have an inverse?

k=?

Should I try multiplying A by A?

What should be the value of determinant of [A] - for it to not have inverse?
 
Re: Matrix

What does your book say - about inverse and determinant?

Do a google search and tell us what did you find.
 
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