Question

Considere a função fx -3x + 2. Determine x real, tal que:
A) FX = 0
B) FX = -1
C) FX = π

Answer 1

Resposta:

Explicação passo-a-passo:

f(x) = -3x + 2

A) f(x) = 0

-3x + 2 = 0

-3x = -2 (.-1)

x = 2/3

B) f(x) = -1

-3x + 2 = -1

-3x = -1 - 2

-3x = -3 (.-1)

x = 3/3

x = 1

C) f(x) = n (n = Pi)

-3x + 2 = n

-3x = n - 2 (.-1)

x = ( 2 - n ) / 3