Gradient checking assignment Concept unclear

In the gradient checking assignment in the def backward_propagation_n, for N D gradient checking I am unable to understand what to write for dZ2 and dW2.

Please can u explain me briefly what to write there and concept behind it

Hi, @SwadhinNagulpelli.

You don’t have to change anything, but there are errors in the expressions for dW2 and db1 (dZ2 is fine) that you can optionally fix.

They should be easy to spot if you compare them with dW1, dW3 and db2, db3 respectively :slight_smile: