me ajudem por favor
Soluções para a tarefa
Resposta:
Explicação passo-a-passo:
. f(x) = x² - x + 2
a) f(0) = 0² - 0 + 2 = 2
b) f(2) = 2² - 2 + 2 = 4 - 2 + 2 = 4
c) f(-3) = (- 3)² - (- 3) + 2 = 9 + 3 + 2 = 14
d) f(1/3) = (1/3)² - 1/3 + 2
. = 1/9 - 1/3 + 2 = (1 - 3 + 18)/9 = 16/9
e) f(- 1/3) = (- 1/3)² - (- 1/3) + 2
. = 1/9 + 1/3 + 2
. = (1 + 3 + 18)/9 = 22/9
f) f(1/5) = (1/5)² - 1/5 + 2
. 1/25 - 1/5 + 2 = (1 - 5 + 50)/25 = 46/25
.
. f)(x) = x/3 + 2x - 1
a) f(1) = 1/3 + 2.1 - 1 = 1/3 + 2 - 1
. = 1/3 + 1 = 1/3 + 3/3 = 4/3
b) f(3) = 3/3 + 2.3 - 1 = 1 + 6 - 1 = 6
c) f(-3) = -3/3 + 2.(-3) - 1 = - 1 - 6 - 1 = - 8
d) f( 1/6) = 1/6 / 3 + 2.(1/6) - 1
. = 1/6 . 1/3 + 2/6 - 1
. = 1/18 + 1/3 - 1 = (1 + 6 - 18)/18 = - 11/18
e) f(- 1/4) = -1/4 / 3 + 2 .(-1/4) - 1
. = - 1/4 . 1/3 - 2/4 - 1
. = - 1/12 - 1/2 - 1 = (-1 - 6 - 12)/12 = - 19/12
.
(Espero ter colaborado)
Explicação passo-a-passo:
a) f(0) = c, c = 2
b) f(2) = 2² - 2 + 2 = 4 - 2 + 2 = 2 + 2 = 4
c) f(-3) = (-3)² - (-3) + 2 = 9 + 3 + 2 = 14
d) f(1/3) = (1/3)² - (1/3) + 2 = 1/9 - 1/3 + 2 = -2/9 + 2 = 16/9
e) f(-1/3) = (-1/3)² - (-1/3) + 2 = 1/9 + 1/3 + 2 = 4/9 + 2 = 22/9
f) f(1/5) = (1/5)² - (1/5) + 2 = 1/25 - 1/5 + 2 = -4/25 + 2 = 46/25
a) f(1) = 1/3 + 2 * 1 - 1 = 1/3 + 1 + 4/3
b) f(3) = 3/3 + 2 * 3 - 1 = 1 + 6 - 1 = 6
c) f(-3) = -3/3 + 2 * (-3) - 1 = -1 - 6 - 1 = -8
d) f(1/6) = (1/6)/3 + 2 * (1/6) - 1 = 1/18 + 1/3 - 1 = 7/18 -1 = -11/18
e) f(-1/4) = (-1/4)/3 + 2 * (-1/4) - 1 = -1/12 + (-1/2) - 1 = -7/12 - 1 = -19/12