RD Sharma - Mathematics (Volume 1)

Book: RD Sharma - Mathematics (Volume 1)

Chapter: 17. Increasing and Decreasing Functions

Subject: Maths - Class 12th

Q. No. 37 of Exercise 17.2

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37

Show that f(x) = x + cos x – a is an increasing function on R for all values of a ?

We have,

f(x) = x + cos x – a



Now,


x R


> 0


> 0



Hence,f(x) is an increasing function for x R


Chapter Exercises

More Exercise Questions

26

Find the interval in which is increasing or decreasing ?