(Solved): 7. In a simple neural network shown below, the corresponding weights and biases are given. An unknow ...

7. In a simple neural network shown below, the corresponding weights and biases are given. An unknown bias value ????????3 is initialized as 0. Use backpropagation to update ????????3 twice. Include all the calculation steps. The learning_rate = 0.1. (15pts)

please give all answer details and calculations.....................

(this question is my last question left, please.............. only give a correct answer please)

\begin{tabular}{|c|l|} \hline Parameters & Value \\ \hline\( w_{1} \) & \( 3.3 \) \\ \hline\( b_{1} \) & \( -1.4 \) \\ \hline\( w_{2} \) & \( -3.5 \) \\ \hline\( b_{2} \) & \( 0.5 \) \\ \hline\( w_{3} \) & \( -1.2 \) \\ \hline\( w_{4} \) & \( -2.3 \) \\ \hline\( b_{3} \) & 0 \\ \hline \end{tabular} \begin{tabular}{|l|l|} \hline Train Input & Train Output \\ \hline 0 & 0 \\ \hline \( 0.5 \) & 1 \\ \hline 1 & 4 \\ \hline \end{tabular}