Álgebra Exemplos

f (x) = 8 x - 7

$f (x) = 8 x - 7$ ,

g (x) = \frac{x + 8}{7}

$g (x) = \frac{x + 8}{7}$

Etapa 1

Estabeleça a função do resultado composto.

g (f (x))

$g (f (x))$

Etapa 2

Avalie

g (8 x - 7)

$g (8 x - 7)$ substituindo o valor de

f

$f$ em

g

$g$ .

g (8 x - 7) = \frac{(8 x - 7) + 8}{7}

$g (8 x - 7) = \frac{(8 x - 7) + 8}{7}$

Etapa 3

Some

- 7

$- 7$ e

8

$8$ .

g (8 x - 7) = \frac{8 x + 1}{7}

$g (8 x - 7) = \frac{8 x + 1}{7}$

$f (x) = 8 x - 7, g (x) = \frac{x + 8}{7}$

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⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$