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Please Solve RD Sharma Class 12 Chapter Function Exercise 2.4 Question 23 Maths Textbook Solution.

Answers (1)

Answer:
                Bijective
Given:
                A,B be two sets, each with a finite number of elements. Prove that A,B bijection.
Hint:
                Bijection should fulfil the surjective injective condition.
Solution:

A \: and\: B  are two non-empty sets.

Let f be a function from A to B.

It is given that there is injective map from A to B.

That means f is one-one.

It also given that there is injective map from B to A.

That means f is onto

f is bijective.

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