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Two functions f:RtoRand g:RtoR are defin...

Two functions `f:RtoR`and `g:RtoR` are defined as follows:
`f(x)={(0,(x"rational")),(1,(x "irrational")):}`
`g(x)={(-1,(x"rational")),(0,(x "irrational")):}`
then (gof)( e )+(fog) (`pi`) =

A

-1

B

0

C

1

D

2

Text Solution

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The correct Answer is:
A
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