can any one solve this mystry?

Thread Starter

salman khan

Joined Apr 13, 2007
1: how many entries of A can be chosen independently, if A=A transpose is a 5*5 matrix?:(

2: how do L and D (still 5*5)give the same number of choices?:rolleyes:

3: how many entries can be chosen if A is skew-symmetric?:eek:


Joined Feb 24, 2006
Why do you think these questions are mysterious? Do you have an approach for finding the solution? Tell us what you think.


Joined Apr 16, 2007
Where did these come from ?

Sounds like a Critical Thinking question from Algebra 2 days, or possibly a Differential Equations question.

I think in light of my finals coming up... i need to do more homework and less puzzles... im trying to put those questions out of my mind.... lol.

Take care.