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यदि सभी वास्तविक संख्याओं x के लिये f(g(...

यदि सभी वास्तविक संख्याओं x के लिये `f(g(x))=g(f(x))=x` है तथा `f(2)=5` एवं `f(5)=3` है `g(3)+g(f(2))` का मान है

A

7

B

5

C

3

D

2

लिखित उत्तर

Verified by Experts

The correct Answer is:
A
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