
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
In triangle $\triangle ABC$, the sides opposite to angles $A$, $B$, and $C$ are $a$, $b$, and $c$, respectively. Given that $(\sqrt{3}\cos10°-\sin10°)\cos(B+35°)=\sin80°$.
$(1)$ Find angle $B$.
$(2)$ If $2b\cos \angle BAC=c-b$, the angle bisector of $\angle BAC$ intersects $BC$ at point $D$, and $AD=2$, find $c$.

Present the answer in LaTex format: \boxed{Your answer}
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