Let A=\{x \in R:-1< x< 1\}. Which of the following is/are bijective functions from A to itself? 1. f(x)=x x| 2. g(x)=\cos (\pi x) Select the correct answer using the code given below :

UPSC NDA I 2024 Mathematics Paper

Question : 22 of 120

Marks: +1, -0

Let A={x∈R:−1<x<1}. Which of the following is/are bijective functions from A to itself?
1. f(x)=xx|
2. g(x)=cos(πx)
Select the correct answer using the code given below :

1 only
2 only
Both 1 and 2
Neither 1 nor 2

Validate

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