Recent content by Abukadu

Hi, good morning! I'm having trouble with vector space. Let there be α and β some given numbers. Prove that the set of all the real numbers f(x) so that: α*f(-2) + β*f(5) = 0 is a vector space ! Could someone please write a full solution for he axiom scalar multiplication?

hi :) Quick questions: How can I write a series converging into the limit of pai ? Prove that the limit of the series zz (n+2) / (2n² +1) zz is not 1/2 when n->infinity (and bigger than 1) I came to the equation: zz |(-2n² + 2n +3) / (2n² +1) | >= ε zz (*)And I made the left...

the limit exists if for each ε > 0 there exists an R such that qqq |f(x) - L| < ε whenever x > R so the limit does not exists when |f(x) - L| < ε whenever x < R ?

thanks, but i didnt really understood (1) ..

hi :] a couple of questions: 1) Using epsilon and N, write in a formal manner the following statement: L is not a the limit of the general series {an} when n goes from 1 to infinity. 2) prove the next sentence: if a series an is converging into a final limit L, then the arithmetic...

Thanks mark, ill try solving 2 and see if I can get there. as to 3, I managed to prove it myself :-)

thanks for trying but your answers are regarded as "intuitive" at this point

Good morning :) I got a couple of question, hope I won't bother you guys too much.. its about function limits. 1) http://www.upit.ws/uploads/53401353963d7.JPG Homework Statement what I tried to do was to say that for all delta>x-(7/4) there is 3x/(4x-7)>M than I tried...

-------------------------------------------------------------------------------- Good morning from Israel :smile: I'm a first year student learning about function limits.. I need to prove / disprove the following statements which I got a bit tangled up with.. " Prove or disprove...

I had to prove the equation, but I figured it out. Same for 2, I need to prove the equation and not just asume that it exists! That one I couldn't prove..

ok i figured out 1.. bu still no clue as to .2 !

Got no clue .. need some clues

hi marlon what do you mean by x=y=1? what is my x and y? the binomial theorem has r and y

Homework Statement http://img82.imageshack.us/img82/8125/78492134fy0.th.jpg http://g.imageshack.us/thpix.php I need to prove that the left part is equal to the right. I'm not sure how to approach the question. I know that (n over k)=n! : k!(n-k)! but how do I sum all the number from k=0...

I am more than willing to help you with your hebrew :)