In Section 11.7.3, the k-parameters are computed by Eqs. (11.101). Using the relations...

In Section 11.7.3, the k-parameters are computed by Eqs. (11.101). Using the relations show that

Where k^f_i is the value of k_i that minimizes the mean-squared forward prediction error

And k^b_i is the value of k_i that minimizes the mean-squared backward prediction error