Consider the following statements:
1. If f is the subset of Z imes Z defined by f=\{(x y, x-y) ; x, y \in Z\}, then f is a function from Z to Z.
2. If f is the subset of N imes N defined by f=\{(x y, x+y) ; x, y \in N\}, then f is a function from N to N.
Which of the statements given above is/are correct? [NDA II 2022]

Question

Consider the following statements:
1. If f is the subset of Z 	imes Z defined by f=\{(x y, x-y) ; x, y \in Z\}, then f is a function from Z to Z.
2. If f is the subset of N 	imes N defined by f=\{(x y, x+y) ; x, y \in N\}, then f is a function from N to N.
Which of the statements given above is/are correct? [NDA II 2022]

Examsnet · Accepted Answer

Correct Answer is : Neither 1 nor 2

NDA Math Sets Relations and Functions