Question

Se considera funcția f:R-->R,f(x)=x-3. a)sa se calculeze f(1)+f(4). b)sa se calculeze produsul f(-3)•f(-2)•.....•f(2)•f(3)

Answer 1

 Salut!

f:R->R, f(x) = x - 3

f(1) = 1 - 3 = -2

f(4) = 4 - 3 = 1

f(1) + f(4) = -2 + 1 = -1

f(-3)f(-2)...f(2)f(3)

=(-3-3)(-2-3)...(2-3)(3-3)

= 0

 Cu drag!