Question

considere a funçao real de variavel real definida por f(x)=2-x. calcule o valor de f(0)- f(1) +f(2)- f(3) + f(4)

Answer 1

f(x)=2-x

f(0)=2-0=2
f(1)=2-1=1
f(2)=2-2=0
f(3)=2-3=-1
f(4)=2-4=-2