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[" 2.Let "f(x)=x^(2),x in R." For any "A...

[" 2.Let "f(x)=x^(2),x in R." For any "A sube R," define "],[g(A)={x in R:f(x)in A}" .If "S=[0,4]" ,then which one of "],[" the following statements is not true? "],[[" (a) "f(g(S))=S," (b) "g(f(S))!=S],[" (c) "g(f(S))=g(S)," (d) "f(g(S))!=f(S)]]

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