Edexcel FP2 - June 3rd, 2015 [Exam discussion thread]

what were the coordinates for the centre of the circle that was transformed? I put (0, -0.8) but a lot of people are saying it's the other way round! :/

Will arsey make an unofficial

He does. Give it a day or two

Does anyone care to show how they proved question 4, part (b). I showed that, using method of differences, the LHS comes out to equal 1/4(n)^2(n+1)^2, and the RHS was just the 'sum of r' all squared [ (1/2)n(n+1) ] ^2 which comes out to 1/4(n)^2(n+1)^2. Therefore, LHS=RHS, so proved?

Does anyone care to show how they proved question 4, part (b). I showed that, using method of differences, the LHS comes out to equal 1/4(n)^2(n+1)^2, and the RHS was just the 'sum of r' all squared [ (1/2)n(n+1) ] ^2 which comes out to 1/4(n)^2(n+1)^2. Therefore, LHS=RHS, so proved?

Hmm, shud be uo in a few hours normally.


Posted from TSR Mobile

Hitler anyone? https://www.youtube.com/watch?v=05D6QvmqftE

Does anyone care to show how they proved question 4, part (b). I showed that, using method of differences, the LHS comes out to equal 1/4(n)^2(n+1)^2, and the RHS was just the 'sum of r' all squared [ (1/2)n(n+1) ] ^2 which comes out to 1/4(n)^2(n+1)^2. Therefore, LHS=RHS, so proved?