Relations and Functions

Q2. If one input has two different outputs, the relation is a function.

Q3. In an onto function, at least one co-domain element is not an image.

Q4. In an onto function, range equals co-domain.

Q5. (a,b) and (b,a) are always the same ordered pair.

Q6. (g∘f)(x)=g(f(x)).

Q7. (a,b) and (b,a) are always equal.

Q8. x=0 belongs to the domain of f(x)=1/x.

Q9. A function assigns exactly one output to each input.

Q10. ஒரு சார்பின் range எப்போதும் அதன் codomain-ன் உட்கணமாகும்.