IGCSE
EDEXCEL
Further Mathematics
9 Marks
QP-FurtherPureMath-202311-P2 · Question 7
Question (excerpt):
18 7 Two numbers x and y are such that 3 4 x y S x y 5 3 2 (a) Show that S x x x 5 9 24 16 3 2 (2) Given that x can vary, (b) use calculus to find the value of x for which S is a minimum, justify…
18 7 Two numbers x and y are such that 3 4 x y S x y 5 3 2 (a) Show that S x x x 5 9 24 16 3 2 (2) Given that x can vary, (b) use calculus to find the value of x for which S is a minimum, justify…
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