The equations connaissance V and A are not symmetric with respect to h and r, i.e. the influence of h and r on the problem are inherently different. We need to write A in terms of purely 1 variable. We use the constraint equation and choose to write h in https://base-directory.com/listings12741161/recherche-de-tendances-peut-%C3%AAtre-amusant-pour-quelqu-un