Integration by Substitution : Edexcel Core Maths C4 January 2011 Q7(c) : ExamSolutions

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Good to hear that it helps whatever the board.

ExamSolutions_Maths
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I do OCR but I find all of this so useful, Thank you so much, don't ever stop making these :)

TheAlexJWilliams
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I got confused on this question because when you are converting the limits, the square root of 1 can be 1 or -1 so surely the limit is either 4+1 or 4-1 which is 5 or 3? Do you just always use the biggest limit or is there something that I am missing?

WellCookedPork
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To any one asking about the +- root, just be consistent. Using the negative set will get you 2 and 3, and the area is the same

TheMajorpickle
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6:13 "stymie the socks" what does that even mean! hahaha

fear
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Just discovered something absolutely hilarious! Turn captions on and translate captions, read 4:20 on the captions onwards, fucking funny! XD

fear
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i dont understand the use of the mod sign?? someone explain please asap

faizakausar