Error: Backpropagation Light Maths Version

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i am not getting the when talking about backpropagation in (Backpropagation light mathy version part 2 )there is softmax function and we are multiplying an exponential part to both num… and den… so during this as multiplication will add indices but in contrast there is ultiplication between indices and literally derived the entire gradient from that please clarify this to me i am not getting it.

Your doubt is valid.This was a mistake. In later video, professor has clarified and rectified this.

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