### Home > CALC > Chapter 7 > Lesson 7.4.4 > Problem7-212

7-212.

$\text{tan}\theta =\frac{\text{opposite side}}{\text{adjacent side}}$

What are the opposite and adjacent sides here?

To obtain θ', you will have to use implicit differentiation in terms of t, since the x-coordinate and θ are changing over time.

$2\text{ln}2-1\approx 0.386$