- #1
Physics lover
- 249
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- Homework Statement
- Let M be a colum vector (not a null vector).Let A=(M M^T)/(M^T M)
Then A is
a)involuntary b)nilvoluntary c)identity d)idempotent
- Relevant Equations
- Idempotent Matrix:A^2=A
Involuntary Matrix:A^2=I
Nilvoluntary Matrix:A^2=0
I assumed a column vector of degree 3 and then calculated A from the given condition.But after solving it i tried to find A2 and then I got stuck as none of the options seem to match.
Please help.
I think i will have to learn LATEX.![Slightly frowning face :slight_frown: 🙁](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f641.png)
![Slightly frowning face :slight_frown: 🙁](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f641.png)
Please help.
I think i will have to learn LATEX.
![Slightly frowning face :slight_frown: 🙁](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f641.png)
![Slightly frowning face :slight_frown: 🙁](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f641.png)