Please solve RD Sharma class 12 chapter Increasing and Decreasing Functions exercise 16.2 question 5 maths textbook solution
Answer:
f(x) is decreasing function for all x≠0
Given:
To show:
We have to show that f(x) is decreasing function for all x≠0.
Hint:
Solution:
We have
On differentiating both sides w.r.t x we get
Their ratio is also greater than 0.
As by applying negative sign change in comparison sign.
Hence f(x) is decreasing for all x≠0.