Qualification > Math
IGCSE MATHS Doubts
Vin:
--- Quote from: ksitna on May 18, 2010, 10:03:31 pm ---
VIN yes i think they are answered
--- End quote ---
i see u;ve answered them ..
haris94:
then i think the formula is wrong ??? ???
bulono:
--- Quote from: ~VIN1094~ on May 18, 2010, 10:02:33 pm ---answered ??
--- End quote ---
yup....
Vin:
--- Quote from: haris94 on May 18, 2010, 10:07:33 pm ---then i think the formula is wrong ??? ???
--- End quote ---
number 'n' , common diff. 'd' , first term 'a' and difference change 'c'is:
a+d(n-1)+c/2(n-1)(n-2)
try this wat was the sequence By the way ??
ksitna:
--- Quote from: haris94 on May 18, 2010, 10:03:02 pm ---ummm im still not getting the right answer ???
i got 2n2-2n+4
the answer is 2n2+2n
can u pls simplify and show me
thanx a million
--- End quote ---
okie
i hate simlifying so im sorry it took a while :/
i got the same thing as u so i must have done somat wrong but wait lemme check again.
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