dy/dx = 1/[dx/dy] rule : c3 edexcel june 2012 q7(b) : examsolutions maths tutorials Published 11 years ago • 43K plays • Length 8:23 Download video MP4 Download video MP3 Similar videos 13:39 equilibrium on a rough inclined plane : m1 edexcel june 2012 q3 : examsolutions maths tutorials 14:10 jb retirement are for singapore washouts! 2:41 edexcel c3 core maths june 2014 q1(a) : examsolutions maths revision 1:20:26 a-level maths - c3 june 2016 - gce - answers