(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

For a nonhomogeneous system of 2012 equations in 1999 unknowns, answer the following three questions:

Can the system be inconsistent?

Can the system have infinitely many solutions

Can the system have a unique solutions?

2. Relevant equations

3. The attempt at a solution

I did the answer, but not sure if it is correct, however my prof never did it in this way not sure if it is a valid answer.

My answer to these three sub questions are: Yes, Yes, Yes

1. reason for Inconsistency:

Since the system is nonhomogeneous (The constant matrix cannot =0)

so there could be a row (0....01 or 0=1) so it would be inconsistent.

2. reason for Infinite:

Infinite amount of solutions if number of variables > rank

So if the equations are Linearly Dependent then there is really only ONE equation

So the number of variables > rank, therefor containing infinite amount of solutions

(i am not sure of this answer)

3. Reason for Unique solution.

if some of the equations are linearly dependent then the number of ranks = number of variables therefore contains a unique solution (not sure of this answer).

Please help me varify this for me or is there a better and clearer solution? Thanks A LOOT.

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Non-Homogeneous Question Linear Algebra

**Physics Forums | Science Articles, Homework Help, Discussion**