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# FP1 Proof help. Watch

1. Hi, I was doing question 10 of the June 2012 FP1 paper. I was wondering if there is a logical way to know how to do that particular question? Mostly because on line 5 of the working in the mark scheme, they suddenly change 1 to (-1 +2). How would you know to do that?
2. (Original post by Glavien)
Hi, I was doing question 10 of the June 2012 FP1 paper. I was wondering if there is a logical way to know how to do that particular question? Mostly because on line 5 of the working in the mark scheme, they suddenly change 1 to (-1 +2). How would you know to do that?
No, not really. It just comes with practice and knowing where you want to go
3. (Original post by Zacken)
No, not really. It just comes with practice and knowing where you want to go
Ohh, alright thanks. I'm gonna try find some hard proofs in that case and try them.
4. Ads you practice, tricks like -1 = 1-2 etc come to mind because you know where you are headed. It is like driving into a chicane on a road you know well, you set your bike into the right road position well ahead of the first curve.

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