ballon Posted March 23, 2010 Report Share Posted March 23, 2010 They've given us a new math internal assessment about infinite summation. But I couldn't find anything on the internet and I really need help because I did not understand anything!!!!!! its deadline is 4 days from now! If there's anyone who already solve it please help me!Post by: Mahuta2 TOPICS MERGED Reply Link to post Share on other sites More sharing options...
hrofu Posted April 16, 2010 Report Share Posted April 16, 2010 (edited) Hi everyone,We just got our Maths IA and it's about Infinite SummationsDid anyone else get that same IA?I'm having trouble finding a general formulaEven though I'm getting an arithmetic series for this problem, the formula that I come up with doesn't work properly.The only thing I know so far is that n = Sn, so every time n changes its value, Sn becomes that same value.The problem is:(x ln a) 1Where x = 1 and a = any number between 0 and 10 (includes 0 and 10)And the first term for a = 2If anyone could help me, thanks in advance. Edited April 16, 2010 by hrofu Reply Link to post Share on other sites More sharing options...
IBSlayer Posted May 12, 2010 Report Share Posted May 12, 2010 Hey, I have the same assignment as you.The general formula is a^x. Your value for a should be the point on the y axis at which the asymptote approaches. Good luck Reply Link to post Share on other sites More sharing options...
Georg Posted May 23, 2010 Report Share Posted May 23, 2010 Hey, I have the same assignment as you.The general formula is a^x. Your value for a should be the point on the y axis at which the asymptote approaches. Good luck How can it be a^x? shouldn't it be ax? Reply Link to post Share on other sites More sharing options...
nick_likes_pie Posted June 16, 2010 Report Share Posted June 16, 2010 (edited) i need to give it in in 2 days and i havent got a clue how to do it....what the **** do you need to write in the explanationdoes any one have any type 1 examples...would be a big help thanks Edited June 16, 2010 by Aboo We have swear filters in place. Don't try to avoid them =) And no text speak either! Reply Link to post Share on other sites More sharing options...
Fatty McGee Posted August 7, 2010 Report Share Posted August 7, 2010 Am also doing this coursework.I've done the two specific ones where x=1, a=2 and where x=1, a=3 but am now trying to do the general sequence for a where x=1 and am not sure how to go about this. I've written this out in full 10∑r=0(ln a )^n/n! but have no idea where to go from there. If anyone could give me some indication of how i'm meant to start adding these would be a massive help!Thanks. Reply Link to post Share on other sites More sharing options...
Naiya Posted August 9, 2010 Report Share Posted August 9, 2010 i got the general formula as a^x but this is valid only till x=3 for my investigation, for different values of a.so did anyone else too got the same limitation??Am also doing this coursework.I've done the two specific ones where x=1, a=2 and where x=1, a=3 but am now trying to do the general sequence for a where x=1 and am not sure how to go about this. I've written this out in full 10∑r=0(ln a )^n/n! but have no idea where to go from there. If anyone could give me some indication of how i'm meant to start adding these would be a massive help!Thanks.READ THE QUESTION properly and carefully you will get the answer to the question......use different values of 'a' too.. Reply Link to post Share on other sites More sharing options...
Narcissist Posted August 9, 2010 Report Share Posted August 9, 2010 i got the general formula as a^x but this is valid only till x=3 for my investigation, for different values of a.so did anyone else too got the same limitation??Try increasing the number of terms for summation, this is likely to be your issue. Any positive value of x should work.What program are you using for your calculations? Reply Link to post Share on other sites More sharing options...
Naiya Posted August 10, 2010 Report Share Posted August 10, 2010 i got the general formula as a^x but this is valid only till x=3 for my investigation, for different values of a.so did anyone else too got the same limitation??Try increasing the number of terms for summation, this is likely to be your issue. Any positive value of x should work.What program are you using for your calculations?i am using the GDC...only for calculations although Reply Link to post Share on other sites More sharing options...
Narcissist Posted August 10, 2010 Report Share Posted August 10, 2010 If you have access to Microsoft Excel (preferably 2007 or later edition) I'd advice you from the bottom of my spleen to use that instead, or as compliment or whatever.Otherwise as said, when you sum up for Sn increase the number of terms for summation. Reply Link to post Share on other sites More sharing options...
watermelon Posted August 10, 2010 Report Share Posted August 10, 2010 i have done this assignment last term... and to achieve the highest descriptor for the technology.you will have to use different programmes.. not just excel hope this helps Reply Link to post Share on other sites More sharing options...
Cynthia Posted August 10, 2010 Report Share Posted August 10, 2010 you will have to use different programmes.. not just excel Could you explain the reasoning behind this? I have seen several Maths IAs from my school with 20/20 points and they all have only used Excel. Reply Link to post Share on other sites More sharing options...
lily106 Posted August 27, 2010 Report Share Posted August 27, 2010 Is it a geometric series, or arithmetic? Reply Link to post Share on other sites More sharing options...
crisie93 Posted September 15, 2010 Report Share Posted September 15, 2010 What do you get for S10 when x=-1 and a=2, 2 or 0'5??NEEED HELP DESESPERATELY, I'm not sure if i'm writing the formula right.. Reply Link to post Share on other sites More sharing options...
radhikak Posted October 1, 2010 Report Share Posted October 1, 2010 Is it a geometric series, or arithmetic?i dont think its either geometric or arithmetic.None of the rules apply =/ 1 Reply Link to post Share on other sites More sharing options...
Lilie Posted October 3, 2010 Report Share Posted October 3, 2010 Hey, I just started doing this same IA and I'm not yet sure how to approach it.. Will the rules of geometric or arithmetic sequences apply? Reply Link to post Share on other sites More sharing options...
lmnop Posted October 3, 2010 Report Share Posted October 3, 2010 Ok this is my first IA for my math class and I have no idea how it is suppose to be formatted!!! Can anyone provide me an example? I especially need help on how to write my thesis!!! Reply Link to post Share on other sites More sharing options...
Mahuta ♥ Posted October 3, 2010 Report Share Posted October 3, 2010 Although your teacher is supposed to tell you this, however:First you have to have a paragraph explaining what your project is about, what you're investigating and finally the method you're using. Also make sure you mention the 'technology' you're using, i.e GDC and whatever computer software you're going to use.The rest is just up to you, as long as it coherent, organized and wont confuse the teacher or the marker.Also remember to include a conclusion (some people don't do that), saying what you found out in the investigation and whether or not your method worked.I'm assuming you were given a paper in which the project is explained and given guiding questions? 4 Reply Link to post Share on other sites More sharing options...
Bishup Posted October 3, 2010 Report Share Posted October 3, 2010 The teacher has provided you a question and guidelines as your framework format it as an investigation. Please make sure you have some idea before you post such a desperate call of help Reply Link to post Share on other sites More sharing options...
lmnop Posted October 3, 2010 Report Share Posted October 3, 2010 I was told to follow the scientific method when typing out the paper. What really concerns me is the thesis statement. Is it ok if I were to state it like I would in a science paper with a "if...then..." statement? Reply Link to post Share on other sites More sharing options...
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