**TI83F* Created by TI-Smartview CE 5.4.0.1858Ý ÌC9BACCPÌÊPYCD*09_Indice_TleTechno_Bac_sujetC_corrige.pyfrom math import* def concentration(): t=0 c=1.3 while c>0.3: t=t+0.1 c=1.3*exp(-0.4*t) return(t) ­8