RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 17. Increasing and Decreasing Functions

Subject: Maths - Class 12th

Q. No. 5 of Exercise 17.1

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Show that is a decreasing function on (0, ∞).

we have

let x1,x2 (0,) We have, x1 > x2

f(x1) < f(x2)

Hence, x1 > x2 f(x1) < f(x2)

So, f(x) is decreasing function

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