bonjour
T( 0.1 ) = 3 et T ( 0.5 ) = 5
( 5 - 3 ) / ( 0.5 - 0.1 ) = 2/0.4 = 5
ax = 5
T (0.1 ) = 3
0.1 x 5 + b = 3
b = 3 - 0.5 = 2.5
T (x) = 5 x + 2.5
ensemble définition = [ 0 ; 0.6 ]
A ( 0.05 ) = 0.05 * 5 + 2.5 = 2.75 donc A ∉ C
5 x + 2.5 = 4
5 x = 4 - 2.5
5 x = 1.5
x = 0.3
quand la tension = 4 , le temps est de 0.3 s
T (0.3 ) = 5 x 0.3 + 2.5 = 4