Edexcel Mathematics October 2021 · Paper 1 · Question 14 · ExamRizz

ExamRizzEdexcel MathematicsMathematics

October 2021 · Paper 1 · Question 14 · 4 marks

14. Given that y = x x− +4 2 x > 0 show that d dy x = Ax1 x > 0 where A is a constant to be found. (4) 45 46 47