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## Homework Statement

r(t) = <cosh(t), -sinh(t), t>

not given a value for t.

## Homework Equations

r'(t)

N(t)

## The Attempt at a Solution

T = r'(t)/distance[r'(t)]

how do you find unit tangent vector and the unit normal vector without being given a value for t?

r'(t) = <sinh(t),- cosh(t),t>