Question

Which statement about inverse matrices is true?
a) An inverse matrix is always a square matrix.
b) An inverse matrix is never a square matrix.
c) The determinant of an inverse matrix is always zero.
d) There always exists a square matrix A^-1 for which AA^-1 = l.

Answer 1

HI!!

Answer 2

https://people.richland.edu/james/lecture/m116/matrices/inverses.html

Answer 3

So A?

Answer 4

notice that it says "the inverse of a SQUARE matix

Answer 5

yes A

Answer 6

Thank you!

Answer 7

\[\color\magenta\heartsuit\]

Answer 8

I'm glad you asked that question - I'd forgotten that bit about matrices!