Bonjour, pouvez-vous m'aider pour cet exercice de mathématiques svp ? Merci d'avance :) .... Pergunta de ideia deNalini

July 2022 1 30 Report

Bonjour, pouvez-vous m'aider pour cet exercice de mathématiques svp ?
Merci d'avance :)

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Pidio

Bonjouuuur !

1)

$f( - 10) = - 2 \times ( - 10) + 1 = 21$

$f(0) = - 2 \times 0 + 1 = 1$

$f( \frac{1} {7}) = - 2 \times \frac{1} {7} + 1 = \frac{ - 2}{7} + 1 = \frac{5}{7}$

2)

$- 2x + 1 = - 1 \\ - 2x = - 2 \\ x = 1$

Donc

$f(1) = - 1$

$- 2x + 1 = 7 \\ - 2x = 6 \\ x = - 3$

Donc

$f( - 3) = 7$

$- 2x + 1 = \frac{2}{9} \\ - 2x = - \frac{7}{9} \\ x = \frac{7}{18}$

Donc

$f(\frac{7}{18} ) = \frac{2}{9}$

Bonne journée

1 votes Thanks 1

Nalini Merci beaucoup vous êtes génial !!

Nalini Bonne journée à vous aussi :D

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