Recent content by shutoutsteve

That is the definition we received today in class, which was similar to what the textbook said, except it wasn't laid out as neat and orderly as this one. I now understand the topic. I apologize for being stubborn earlier about the textbook quotes. I realize now all i needed was this...

...oops... subSPACE... my bad lol ... Our book does have a definition, but it is very vague, about a paragraph long and then it goes on about something else. There aren't even any examples that LOOK like this in our book. It's ok though because we are covering this Monday in class, and 14/65...

That is what my book says exactly. :(

a) {(x1,x2,x3) | x1+x2 ≥ 0} b) {x∈R3 |proj(1,1,1) (x) ∈ Sp({(1,1,1)})} Prove the set is or is not a subset of R n I have no idea how to solve this. Our textbook gives NO examples of how to prove these Please help me get started, a related example would be great too. :) Thanks-...

Yes, that was given too. Our other assignment page is covered in derivatives and integrals, but my answer for this one was simple math, so I was worried I had it wrong. :)

Homework Statement Rocket with fuel mass of m(initial) Rocket without fuel is m(final) Time for fuel to be used up is t(final) Homework Equations What is m(t) (slope of m vs t graph) (i assume t(initial) is zero The Attempt at a Solution [((m(final) -m(initial)) / t(final)]t +...

We did this the other day, except we just manipulated the formulas instead of working with actual values. I am going to attempt to make sense of what I have for that note, so you may hear from me soon...

Does anyone have a straightforward link to linearity rules? My textbook is not very helpful and my prof never knows what he is talking about :(. I have a few "prove this is not linear" questions to do f(x)=(|x1|,|x2|) f(x)=(1,2)+3x f(x)=(0,1) I should know this, but i tend to forget the...