Lets see who wants to show off their math knowledge

[PurdueRy]

Hi all, I thought I might try out the good ol ATOT community to see if anyone wants to take a crack at this question.

I am in a advanced linear algebra course here at Purdue, after this, 2 more math classes and a math minor is mine .

Anyway

Suppose that A is a square matrix with characteristic polynomial p(h) = h^2(h+5)^3(h-7)^5

a) what is the size of A? I think I got this one...its just the total degree which is 10.

b. Can A be invertible? No idea here, need a REASON.

c. What are the possible dimensions of the nullspace of A? Again, I need a REASON along with the answer(or just some help in reaching it

d. What can you say about the dimension of the h=7 eigenspace? same as above...

Now, I am not looking to have someone do my hw for me here. I am retaking this class with the hopes of significantly improving my GPA. So far, I am doing much better(better prof). I just need help in figuring out how to solve the parts to these problems. Any guidance would be much appreciated. Thanks

 

[venk]

DO YOUR OWN HOMEWORK! I DONT CARE IF IT IS DUE TOMMOROW MORNING YOU F'N SLACKER!

 

[amol]

SPRING BREAK, sorry, my mind is on vacation!! LALALAALALALAL!!!

 

[PHiuR]

id help ya but i dont like math.s orrie.

 

[jagec]

Do you have any idea how much I HATED linear algebra?

 

[MikeMike]

42.

btw, purdue math is a piece of shlt i cant stand this bullshlt teachers who cant speak english etc.

MIKE

 

[YOyoYOhowsDAjello]

a) 3"
b) sure... because it would be cute.
c) length, width, and height... because those are some nifty dimensions
d) I'd say I don't know what you're talking about... because I haven't taken linear algebra

what do I win?

 

[PurdueRy]

LOL. Its not due tomorrow. But I don't have class tomorrow, which means I can't ask the prof.

I hate linear algebra too And I am getting two doses of it

 

[PurdueRy]

Originally posted by: YOyoYOhowsDAjello
a) 3"
b) sure... because it would be cute.
c) length, width, and height... because those are some nifty dimensions
d) I'd say I don't know what you're talking about... because I haven't taken linear algebra

what do I win?

You win +1 more post added to your total

 

[venk]

you should pay him...


...in sexul favors...

...and post pics on the internet...

 

[PurdueRy]

Haha, if I know jello I would just buy him a HK 7300 with some Paradigm/B&W speakers

 

[Goosemaster]

I tutor linear algebra.....to 10th graders..lol

SERIOUSLY.

Null space, invertibility...all those are terms in your book...to find the eigen vecotrs you need to find the eigen values....and then you will know the dims

 

[BornStar]

Originally posted by: nourdmrolNMT1
42.

btw, purdue math is a piece of shlt i cant stand this bullshlt teachers who cant speak english etc.

MIKE

Yeah, that was one of the reasons I quit engineering (besides the fact that it just didn't interest me). I thoroughly impressed my technology advisor (and forgot all of that math I learned on the spot).

Sorry, the furthest I got in math at Purdue is 261 and I remember exactly 0% of it.

 

[YOyoYOhowsDAjello]

Originally posted by: rleemhui
Haha, if I know jello I would just buy him a HK 7300 with some Paradigm/B&W speakers

hawt.

 

[Goosemaster]

Originally posted by: BornStar18

Originally posted by: nourdmrolNMT1
42.

btw, purdue math is a piece of shlt i cant stand this bullshlt teachers who cant speak english etc.

MIKE

Yeah, that was one of the reasons I quit engineering (besides the fact that it just didn't interest me). I thoroughly impressed my technology advisor (and forgot all of that math I learned on the spot).

Sorry, the furthest I got in math at Purdue is 261 and I remember exactly 0% of it.

what was 261

<---would love to go to Purdue some day

 

[BornStar]

Originally posted by: Goosemaster

Originally posted by: BornStar18

Originally posted by: nourdmrolNMT1
42.

btw, purdue math is a piece of shlt i cant stand this bullshlt teachers who cant speak english etc.

MIKE

Yeah, that was one of the reasons I quit engineering (besides the fact that it just didn't interest me). I thoroughly impressed my technology advisor (and forgot all of that math I learned on the spot).

Sorry, the furthest I got in math at Purdue is 261 and I remember exactly 0% of it.

what was 261

<---would love to go to Purdue some day

Um... That's a good question. Hold on a sec.

edit: It appears to be multivariate calculus.

link

 

[Goosemaster]

Originally posted by: BornStar18

Originally posted by: Goosemaster

Originally posted by: BornStar18

Originally posted by: nourdmrolNMT1
42.

btw, purdue math is a piece of shlt i cant stand this bullshlt teachers who cant speak english etc.

MIKE

Yeah, that was one of the reasons I quit engineering (besides the fact that it just didn't interest me). I thoroughly impressed my technology advisor (and forgot all of that math I learned on the spot).

Sorry, the furthest I got in math at Purdue is 261 and I remember exactly 0% of it.

what was 261

<---would love to go to Purdue some day

Um... That's a good question. Hold on a sec.

lol

 

[PurdueRy]

261 is calc III at purdue

 

[PurdueRy]

Originally posted by: Goosemaster
I tutor linear algebra.....to 10th graders..lol

SERIOUSLY.

Null space, invertibility...all those are terms in your book...to find the eigen vecotrs you need to find the eigen values....and then you will know the dims

great...you told me things I know. I know how to find eigenvectors. This question is a bit different. and my book is open on my desk. You should know that math isn't always clear without some help.

 

[Goosemaster]

Originally posted by: rleemhui
261 is calc III at purdue

ah. Spoken like a man who truly has the answers to the questiosn that are irrelevant in the calculation of his grade in Linear Algebra

 

[blahblah99]

Originally posted by: rleemhui
Hi all, I thought I might try out the good ol ATOT community to see if anyone wants to take a crack at this question.

I am in a advanced linear algebra course here at Purdue, after this, 2 more math classes and a math minor is mine .

Anyway

Suppose that A is a square matrix with characteristic polynomial p(h) = h^2(h+5)^3(h-7)^5

a) what is the size of A? I think I got this one...its just the total degree which is 9.

b. Can A be invertible? No idea here, need a REASON.

c. What are the possible dimensions of the nullspace of A? Again, I need a REASON along with the answer(or just some help in reaching it

d. What can you say about the dimension of the h=7 eigenspace? same as above...

Now, I am not looking to have someone do my hw for me here. I am retaking this class with the hopes of significantly improving my GPA. So far, I am doing much better(better prof). I just need help in figuring out how to solve the parts to these problems. Any guidance would be much appreciated. Thanks

Dude, college students have it easy nowadays. Just google anything up. Back when I was in college, we only had yahoo, and they sucked at the time.

 

[Goosemaster]

Originally posted by: rleemhui

Originally posted by: Goosemaster
I tutor linear algebra.....to 10th graders..lol

SERIOUSLY.

Null space, invertibility...all those are terms in your book...to find the eigen vecotrs you need to find the eigen values....and then you will know the dims

great...you told me things I know. I know how to find eigenvectors. This question is a bit different. and my book is open on my desk. You should know that math isn't always clear without some help.

EXACTLY. IF you had helped yourself earlier, I wouldn't be helping you right now.


what are the dims of the eigen vector matrices

 

[PurdueRy]

Originally posted by: Goosemaster

Originally posted by: rleemhui
261 is calc III at purdue

ah. Spoken like a man who truly has the answers to the questiosn that are irrelevant in the calculation of his grade in Linear Algebra

Haha, na this is just one question from the hw. I am really trying to understand this stuff. I am at a solid B right now, I would like the A. One thing in Linear though is that you can't just BS answers or you'll get fvcked when the test comes.

 

[BornStar]

Originally posted by: BornStar18

Originally posted by: Goosemaster

Originally posted by: BornStar18

Originally posted by: nourdmrolNMT1
42.

btw, purdue math is a piece of shlt i cant stand this bullshlt teachers who cant speak english etc.

MIKE

Yeah, that was one of the reasons I quit engineering (besides the fact that it just didn't interest me). I thoroughly impressed my technology advisor (and forgot all of that math I learned on the spot).

Sorry, the furthest I got in math at Purdue is 261 and I remember exactly 0% of it.

what was 261

<---would love to go to Purdue some day

Um... That's a good question. Hold on a sec.

edit: It appears to be multivariate calculus.

link

Incidentally, as someone from VA, shouldn't you desire to attend VT?

 

[Goosemaster]

It's like A- lambda something..it's gotta be in your book