Question

Check the injective (Into)and surjective (onto) properties of

following function:

F(x)= x2 for FN: N​

Answer 1

Answer:

i) f:N→N given by f(x)=x

2

(ii) f:Z→Z given by f(x)=x

2

(iii) f:R→R given by f(x)=x

2

(iv) f:N→N given by f(x)=x

3

(v) f:Z→Z given by f(x)=x

3