If f : A —> B, g : B —> C then what is the domain and codomain of (fog)(x)?
Kasarla Yashoda Rama Krishna , 3 Years ago
Grade 11
Differential Calculus> If f : A —> B, g : B —> C then what is th...
1 Answers
Abhishek Singh
Last Activity: 3 Years ago
fog(x) is defined iff Range of g(x) lies within Domain of f(x) ==> For it to be defined we require 
.
Now, Domain of fog(x) is same as g(x) ==> Domain = B
Codomain of fog(x) is same as codomain of f(x) ==> Codomain = B
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