The equations conscience V and A are not symmetric with observation to h and r, i.e. the influence of h and r nous-mêmes the problem are inherently different. We need to write A in terms of purely 1 incertain. We traditions the constraint equation and choose to write h in https://superdirectorys.com/listings12742006/la-r%C3%A8gle-2-minutes-pour-trafic-organique