Question

Sendo a f (x)= 1/x, o valor de f (1+h) – f (1) é:

-h/(1+h)
h/2
h/(1+h)
2h/(2h-1)

Answer 1

f(1+h) = 1/(1+h)
f(1) = 1
f(1+h) - f(1) = 1/(1+h) - 1 = [1 -(1+h)]/(1+h) = -h/(1+h)