3 For the given back propagation network shown in the figure below i) Determine the output at node Y by considering the input's as x1 = -1 and x2 = 1. [04M] ii) If the target is given as t = 0.75, propagate the error back and determine the [08M] updated weights for node Y to Z1 & node Y to Z2. [Consider bipolar sigmoid as the activation function and a = 0.45 and 2 = 1]. Consider the values of the weights are wl = 0.7, w2 = -0.4, w3 = -0.2, w4 = 0.3, w5 = 0.5 and w6 = 0.1. qu +0-3 wi -0.3 zi 22