Question

if f:A--->B be a function determined by f={(1,2),(2,3),(4,5),(6,7)} then find f(1),f(4)?​

Answer 1

Step-by-step explanation:

one-one function is a function that comprises individuality that never maps discrete elements of its domain to the equivalent element of its codomain. We can say, every element of the codomain is the image of only one element of its domain.

f(1)=4, f(2)=5 and f(3)=6.

Thus, different elements in A have different images in B.

Hence, f is one-one.