Question

va rog ajutatima cu mate cu determinarea elementelor functiei f;{-1,0,2,3}sageata{-3,-2,0,1} , f(x)= - x

Answer 1

f:{-1,0,2,3}->{-3,-2,0,1}

f(-1)=-(-3) => f(-1)=3
f(0)=-(-2) => f(0)=2
f(2)=-0 
f(3)=-1