
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 $ABC$, the sides opposite to angles $A$, $B$, $C$ are respectively $a$, $b$, $c$. It is known that $2a\cos A=c\cos B+b\cos C$.
(Ⅰ) Find the value of $\cos A$;
(Ⅱ) If $a=1$ and $\cos^2 \frac{B}{2}+\cos^2 \frac{C}{2}=1+ \frac{\sqrt{3}}{4}$, find the value of side $c$.

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