Question 2 - A-Level Maths

Exam Board	SPS
Module	SPS SM Pure (SPS SM Pure)
Year	2023
Session	September
Marks	6
Topic	Differentiation Applications
Type	Increasing/decreasing intervals

2.
\(f ( x ) = \frac { 1 - 2 x ^ { 9 } } { x ^ { 5 } } \quad\) for \(x > 0\) Prove that \(f ( x )\) is a decreasing function.
[0pt] [6 marks]