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Explain solution RD Sharma class 12 chapter Functions exercise 2.1 question 5 sub question (ix) maths
Answers (1)
Bijective
Given:
defined by
.
Hint:
Bijection: function should be one-one and onto function.
Solution:
Injection test:
Let x and y be any two elements in the domain (R) such that
So, f is an injection.
Surjection test:
Let y be any element in the codomain (N) , such that for some element x in R .
So, f is a surjection.
So, f is a bijection.
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