Now let ( ) g(z) be the sigmoid activation function and y be a real number value between 0 and 1 (we will ignore the threshold T a for this part). Recall that the derivative of the sigmoid function is ( ) = ( ) ( 1 ( ) ) z g(z)=g(z)(1g(z)). Calculate z y and 0 w 0 z for backpropagation. You can represent your answers in terms of 0 , 1 , 0 , 1 , , x 0 ,x 1 ,w 0 ,w 1 ,z, or y. No file chosen