RS Aggarwal - Mathematics

Book: RS Aggarwal - Mathematics

Chapter: 3. Functions

Subject: - Class 11th

Q. No. 4 of Exercise 3B

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4

If then show that f{f(x)} = x.

Given:


Need to prove: f{f(x)} = x


Now replacing x by f(x) we get,






[Proved]


Chapter Exercises

More Exercise Questions

2

If then show that

(i)


(ii)