Discussion about math, puzzles, games and fun. Useful symbols: χ Χ ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π Ή ² ³ °
 

You are not logged in. #1 20130922 09:43:16
SetsCan someone please solve the following questions with detailed explanations for me? we are to discuss it before being taught, thank you. #2 20130922 17:59:53
Re: Setshi Obeng add next term Now, your turn. Factorise the common factor, put all over 2, and simplify. Your target is: Q5. Just checking I have the equation correct. Is it: That means that and and so on down to So you should be able to make a_n the subject and keep substituting the other terms until you have just a formula in 'n'. OR Now I look at what I've said so far, it might be easier to start with a_2 and work out its value, using this to work out a_3 and so on. It may then be obvious what the formula for a_n is. I've had a little play with my last suggestion, and the formula for this is not going to be easy to find. Is that what 'solve' means here or will it be sufficient to generate the sequence? Bob You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #3 20130922 20:13:36
Re: SetsHi;
Your recurrence is incorrect.
The technique is to build up from G(z) = 1 /(1z) by using differentiation, integration and the shift operator. So far this has led to a generating function that I can not solve for. Is it possible to use a DE here? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #4 20130922 21:05:30
Re: SetsHi Obeng, [z^n] is "Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense"  Buddha? "Data! Data! Data!" he cried impatiently. "I can't make bricks without clay." #5 20130925 01:59:05
Re: SetsThanks a lot bob bundy, bobbym I would very much appreciate if I could attach the assignment because the values and symbols get contorted if I paste it, thanks anyway, thanks gAR wow, I need more questions to practice before my exams, thanks u all, you guys are genius. #6 20130925 02:13:12
Re: SetsHi;
Math is presented in latex. Cutting and pasting will not work in most cases unless you are using a program that understands latex. Why not try a screenshot instead? In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #7 20130925 04:45:52
Re: SetsHi demha The limit operator is just an excuse for doing something you know you can't. It's the subject that nobody knows anything about that we can all talk about! ― Richard Feynman Taking a new step, uttering a new word, is what people fear most. ― Fyodor Dostoyevsky, Crime and Punishment #8 20130925 20:07:16
Re: SetsPlease here are the screenshots of the questions, thanks a lot Last edited by Obeng (20130925 20:14:47) #9 20130925 20:13:14
Re: SetsI am not getting either of those links?! In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #11 20130926 01:14:18
Re: SetsHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 