Question

Exercițiile 2 si 21, va rog !!

Answer 1

3)
a)x-3
f(-4)+f(-3)+.....f(4)=
   f(-4)=-4-3=-7
   f(-3)=-3-3=-6
    f(-2)=-2-3=-5
     f(-1)=-1-3=-4
       f(0)=0-3=-3
       f(1)=1-3=-2
        f(2)=2-3=-1
        f(3)=3-3=0
         f(4)=4-3=1

f(-4)+f(-3)+.......+f(4)=-27
b)f(-4)xf(-3)x.........xf(4)=
f(3)=3-3=0
f(-4)xf(-3)x.....xf(3)xf(4)=0

21)
x+2
f(2)=2+2=4
f(2²)=4+2=6
f(2³)=8+2=10
f(2⁴)=16+2=18
f(2⁵)=32+2=34
f(2⁶)=64+2=66
f(2⁷)=72+2=74

f(2)+f(2²)+.......+f)(2⁷)=212
succes