Question

Seja a função f: R->R*+, dada por f(x)= (1/2)x. Dertermine no caderno:
a) f(0)
b) f(4)
c) f(1)
d)f(2)
e) f(1/4)
preciso dos cálculos ​

Answer 1

Resposta:

Substituindo o valor dado de x, temos

a)

$f(0) = \frac{1}{2} * 0\\f(0) = 0$

b)

$f(4) = \frac{1}{2} * 4\\\\f(4) = \frac{4}{2} \\\\f(4) = 2$

c)

$f(1) = \frac{1}{2} * 1 \\\\f(1) = \frac{1}{2}$

d)

$f(2) = \frac{1}{2} * 2\\\\f(2) = \frac{2}{2} \\\\f(2) = 1$

e)

$f (\frac{1}{4}) = \frac{1}{2} * \frac{1}{4} \\\\f(\frac{1}{4}) = \frac{1}{8}$