Original post by Robbie242
C1 proof of sum of arithmetic series C2 proof of sum of geometric series are the most likely for edexcel
Just these two formulas. Only its the other way round, but you get what I mean.
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Original post by MashB
Just these two formulas. Only its the other way round, but you get what I mean.
This was posted from The Student Room's iPhone/iPad App
This was posted from The Student Room's iPhone/iPad App
Original post by Robbie242
Nope pretty sure they won't ask you for sum of a geometric series in edexcel C1, as the topic for edexcel C1 is arithmetic series
Awkward... Looks like I myself have got it the wrong way round. My apologies guys
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Original post by madfish
quadratic formula proof
SHAZZZZAMMM
SHAZZZZAMMM
I doubt it. Besides, it's more GCSE level than A-level
Original post by L1000
Just wondering which ones we need to learn for C1 and C2
Eg. proof for sum of positive integers, quadratic equation proof?
Eg. proof for sum of positive integers, quadratic equation proof?
proof that c4 is actually a bomb in the teacher's briefcase
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