Regularization lab/exercise A3 shape

The shape of A2 in cache at the start of backward_propagation_with_regularization(X, Y, cache, lambd): seems to be 3,5. with rows 1 & 2 all zeros. Can this be a mistake?


I have moved this post to the DLS Course 2 category. Make sure if you have any course-specific doubts, explore the specialization category and post in the relevant course subcategory as course-specific mentors are actively answering the queries there and the threads in the general discussion might not come on their radar and remain unanswered at times.