Question

Determinati imaginea functiei f:[1,5]->R,f(x)=2x+1

Answer 1

Răspuns:

f(1)=2*1+1=3

f(2)=4+1=5

f(3)=6+1=7

f(4)=8+1=9

f(5)=10+1=11

Im(f)={2,5,7,9,11}