Ramos Graham
03/15/2023 · Primary School
Sait \( f \) la fonction définie sur \( ]-1,+\infty\left[\right. \) par \( f(x)=\frac{x+2}{x+1} \) 11 Montrer que la fonction fachmet une fonctions reciproque \( f \)-1 oléfinie +2 sur un intervalle + a
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La fonction \( f(x) = \frac{x + 2}{x + 1} \) est bijective sur \( ]-1, +\infty[ \) et admet une fonction réciproque \( f^{-1}(y) = \frac{2 - y}{y - 1} \) pour \( y > 1 \).
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