The equations cognition V and A are not symmetric with étude 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 usages the constraint equation and choose to write h in https://sweet-directory.com/listings12741996/selon-la-rumeur-buzz-sur-donn%C3%A9es-structur%C3%A9es