Exercises - Backpropagation with a single modified neuron Suppose we modify a single neuron in a feedforward network so that the output from the neuron is given by f(jjxj+b), where f is some function other than the sigmoid. How should we modify the backpropagation algorithm in this case? - Backpropagation with linear neurons Suppose we replace the usual non-linear function with (z)=z throughout the network. Rewrite the backpropagation algorithm for this case