For the following example which we solved in the class, perform the backward propagation and calculate the gradient with respect to W2, W3, W4,W6, W7, W8and b1,b2

15 w1 40 w5 i1 h1 01 05 20 w2 45 w6 .01 .25 w3 .50 w7 12 h2 02 .30 w4 55 w8 .10 .99 b1.35 b2 .60 1 1 d Etotal dE01 Hint: For calculating dbz dJ dE1 d Etotal = d.J db2 db2 db-2 then break down each part using the chain-rule approach, Similar to when we solved for dW5 dW5