- #1

- 7

- 0

n if r(A)=n

1 if r(A)=n-1

0 if r(A)<n-1

How to deal with the proof? Can someone give more insight? What proof should I use here?

I have an idea only for the third statement.

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- Thread starter quackdesk
- Start date

- #1

- 7

- 0

n if r(A)=n

1 if r(A)=n-1

0 if r(A)<n-1

How to deal with the proof? Can someone give more insight? What proof should I use here?

I have an idea only for the third statement.

- #2

- 22,129

- 3,298

What is [itex]A\cdot adj(A)[/itex]?? What are the implications on the rank?

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