Qualification > Math
IGCSE MATHS Doubts
Vin:
--- Quote from: syedz123 on May 16, 2010, 03:16:05 pm ---guys i've realised that my only weakness in maths is sequences...its so anoying!! i jst dunno hw to deduce da formula...i dnt get it...can any1 please help explain sequence to me...By the way am stuck on question 11 D (i) p4 may/june 09...
--- End quote ---
for these kind of ques u hav to use some common sense .. even im kinda bad at sequences =\ unfortunately there are chances of this topic comin up .. because it didnt come in p2
i got this one for my mock test and i solved it by trial n error .. one thing is good tht they already mention the ans. so i try everything to get the ans
n (n+1)
= ------- + (n + 1)
2
=n2 + 3n + 2
--------------
2
ans is not (n +1 )2 so i tried adding again
=n2 + 3n + 2 n (n+1)
----------------- + ---------
2 2
=(n +1 )2
got it .. sorry i couldnt give u a proper explanation =\
6394:
--- Quote from: ~VIN1094~ on May 16, 2010, 04:44:06 pm ---for these kind of ques u hav to use some common sense .. even im kinda bad at sequences =\ unfortunately there are chances of this topic comin up .. because it didnt come in p2
i got this one for my mock test and i solved it by trial n error .. one thing is good tht they already mention the ans. so i try everything to get the ans
n (n+1)
= ------- + (n + 1)
2
=n2 + 3n + 2
--------------
2
ans is not (n +1 )2 so i tried adding again
=n2 + 3n + 2 n (n+1)
----------------- + ---------
2 2
=(n +1 )2
got it .. sorry i couldnt give u a proper explanation =\
--- End quote ---
sorry bt hw did u get
=n2 + 3n + 2
--------------
2
saleemsamer:
--- Quote from: saleemsamer on May 16, 2010, 03:54:50 pm ---m/j 2005 p4 q2 diagram plz and Thank You in advance :)
--- End quote ---
any1 ???
princess12:
try this site
http://staff.argyll.epsb.ca/jreed/math9/strand3/transformations.htm
thanx
NidZ- Hero:
hey can any1 help me wid nov 2000 Q 7(a)
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