P3 Paper 2018 Worked Solutions 9709/33 October 2018 скачать в хорошем качестве

P3 Paper 2018 Worked Solutions 9709/33 October 2018

Worked solutions for the A2 P3 Paper 33 Oct 2018. Timings for questions: 1) 0:33 2) 3:56 3) 5:16 4) 7:35 incomplete part ii at 9:42 we need to continue on with the value of theta to work out the coordinates of x and y (sub into the equations given) 5) 9:43 Mistake at 11:28 - forgot the power of 2 on the x in the last step. Should be x squared at the end. 6) 11:39 7) 13:36 Correction at 15:25 - have missed the 5 out when factorising. However, have put the right answer at the end, with the 5 included. Correction to part ii: sin x differentiates to cos x, not - cos x, so the signs from that point on are reversed. 8) 18:17 9) 23:06 10) 27:37