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  1. B

    Maths Extension 1 Predictions/Thoughts

    part a is pretty easy u just use general binomial theorem, times both sides by , then differentiate product rule, sub in x=1 u get answer part 2 use integrate (1-x)^n and the corresponding expansion from x to0, then u integrate it again and answer is 1/(n+2) when u sub in x=1
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