bonjour
g ( 2 ) = - 2
g ( -2 ) = 5
g (5) = 10
antécédents de 2 = - 1
de - 2 = 2
de 5 = - 2
g ( 10 ) = - 3
faux g ( - 3 ) = 10
h (a) = 10
h ( 5) = 10
h ( -3) = 10
