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In Exercises 9-16 of Section 13.4, you found T, N, and K. Now, in the following Exercises 9-16, find B and r for these space curves. \text { 16. }

\mathbf{r}(i)=(\cosh t) \mathbf{i}-(\sinh t) \mathbf{j}+t \mathbf{k}

Fig: 1

Fig: 2