For Exercise 11, show the following loss-to-weight derivatives:

∂L

∂U

=

t



p=1

∂L(op)

∂op h

T p ,

∂L

∂W

=

t



p=2

Δp−1

∂L

∂hp h

T p−1,

∂L

∂V

=

t



p=1

Δp

∂L

∂hp xTp What are the sizes and ranks of these matrices?