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- Can someone explain - Sets, Relations and Functions - JEE Main-7
If f(x) and g(x) are two functions . are domains and range of f(x) , g(x) . Then which of the following is the there if fog exists?
- Option 1)
- Option 2)
- Option 3)
- Option 4)
Answers (1)
As we have learned
Condition for composite function -
go f is defined only if for each is an element of g.
- wherein
The range of f must be a subset of the domain of g.
For fog to exsits , Range of inner function is a subset of domain of outter function
Option 1)
Option 2)
Option 3)
Option 4)
View full answer
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