Question

aflati multimea valorilor functiei :
a) f: {-2,-1,5,7}->R ,f(x)=1/x
b) f: {-3,-2,-1,0,1,2}->R ,f(x)=/x/ -1
c) f:R->R ,f(x)=0
d) f:R->R ,f(x)=/x/

Answer 1

a) f(-2)= - 1/2
f(-1)= -1
f(5)= 1/5
f(7)= 1/7
b) f(-3)= 3-1=2
f(-2)=f(2)= 1
f(0)= -1
f(1)= f(-1)= 0
c) {0}
d) R+

O zi buna!