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[f:R rarr R" be the Signum Function defi...

[f:R rarr R" be the Signum Function defined as "],[qquad f(x)={[1,x>0],[0,x=0],[-1,x<0]],[" (s: R "rarr" R be the Greatest Integer Function given by "g(x)=[x]," where "[x]" is so "],[" est integer less than or equal to "x" .Then,does fog and gof coincide in "(0,1]?],[" ber of binary operations on the set "{a,b}" are "],[[" (B) "16," (C) "20," (D) "8]]

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