UPSC NDA II 2010 Mathematics Paper

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Question : 60 of 120

Marks: +1, -0

If
f(x)=‌

2

3

x+‌

3

2

,x∈R
then what is f−1(x) equal to?

‌
3
2
x+‌
2
3
‌
3
2
x−‌
9
4
‌
2
3
x−‌
4
9
‌
2
3
x−‌
2
3

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