Qualification > Math
IGCSE MATHS Doubts
Baladya:
http://www.freeexampapers.us/IGCSE/Maths/CIE/2006%20Jun/0580_s06_qp_4.pdf
http://www.freeexampapers.us/IGCSE/Maths/CIE/2006%20Jun/0580_s06_ms_4.pdf
2)d) i get the (b) x 2 of the mark scheme, but don't understand why (a) x 40
Vin:
tht gives the area of "rectangle" BCAE ( u visualise it by 'removing' tht part from the fig. )
Baladya:
--- Quote from: ~VIN1094~ on May 16, 2010, 10:57:23 am ---tht gives the area of "rectangle" BCAE ( u visualise it by 'removing' tht part from the fig. )
--- End quote ---
O ya so it becomes like a rectangle :D Thnanksss man :) Appreciated ;)
mdwael:
This is something frustrating neither my friends or I understand ??? >:(
I always had problems in finding nth terms and sometimes I do but in paper O/N/07 page 10 question 9 (b) part I couldnt think of a way to find them, neither my friends. Can someone please tell us a solid guide or a way to do it there are 6 questions to find nth term in the Oct/Nov paper year 2007 question 9
We will really appreciate any help, thanks in advance :)
Vin:
Listen for nth term .. according to me is all trial and error .. u get it sometimes or u dont .. u hav to develop tht kind of thinking .. tht is by practice ..
u hav to try each and every method to get it .. i know a formula ..
dn + ( a - d )
d = Common difference between all terms.
a = First term.
only works for numbers having a common diff.
see if this helps ..
http://www.mathguide.com/lessons/SequenceArithmetic.html
someone had posted it .. i'd bookmarked it =P (sorry if wasnt great help =| )
also ..
http://everything2.com/title/How+to+find+the+nth+term+of+a+number+sequence
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