In triangle $ABC,$ $AB = 3,$ $AC = 6,$ and $\cos \angle A = \frac{1}{8}.$  Find the length of angle bisector $\overline{AD}.$
Question:
In triangle $ABC,$ $AB = 3,$ $AC = 6,$ and $\cos \angle A = \frac{1}{8}.$  Find the length of angle bisector $\overline{AD}.$
Answer:
Let's think step by step.

user
3
In triangle $ABC,$ $AB = 3,$ $AC = 6,$ and $\cos \angle A = \frac{1}{8}.$  Find the length of angle bisector $\overline{AD}.$
train