Question

Diketahui fungsi f : x |-> -Xpangkat3 + 1
dgn daerah asli {x |1< x <4 , x bilangan bulat} daerah hasil fungsi f adl

Answer 1

F(x) =  + 1

f(2) = + 1
      = -8 + 1
      = -7

f(3) = + 1
      = -27 + 1
      = -26

range = {-7 , -26}

Answer 2

X= 2,3
f(x) = -x³ + 1
f(2)= -2³ + 1          f(3)=-3³ + 1
f(2)= -8+1=-7        f(3)= -27 +1 =-26