Consider the computational graph of Figure 7.10. For a particular numerical input x =

a, you find the unusual situation that the value ∂y(j)

∂y(i) is 0.3 for each and every edge (i, j) in the network. Compute the numerical value of the partial derivative of the output with respect to the input x (at x = a). Show the computations using both the pathwise aggregation lemma and the backpropagation algorithm.