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Two functions f: R rarr R and g: R rar...

Two functions ` f: R rarr R ` and `g: R rarr R ` are defined by ` f(x) = {(0,x \ rational)(1 , x \ irrational),:}g(x)={(-1,x \ rational)(0 , x \irrational):}`then `g of e + fog(pi)`

A

a,-1

B

b.0

C

c.1

D

d.2

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