Edexcel Core Maths C4 June 2009 Q6b(i) : ExamSolutions

[jasie]

at 1:55, dont you have to include in the + C when writing the value of v? cos v was the integral from the last question and it had a C in it

[denniso]

If we were not told to integrate (5-x)^1/2 in part 6a) how would we know that (5/x)^1/2 is dv/dx and not u?