Question

Calculați produsul f(1), f(2), f(3), f(4), unde f : ℝ-->ℝ, f(x)=x-3.

Answer 1

Răspuns:

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

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

f(3)=3-3=0

f(4)=4-3=1

Produsul este 0 pentru că f(3)=0

Answer 2

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

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

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

f(4)=4-3=>f(4)=1

p=f(1)*f(2)*f(3)*f(4)

p=(-2)*(-1)*0*1

p=0