
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 the Cartesian coordinate system $xOy$, the line $l$ is given by the parametric equations $\begin{cases} x= \frac {3}{5}t \\ y= \frac {4}{5}t\end{cases}$ (where $t$ is the parameter). Now, taking the origin $O$ as the pole and the non-negative half-axis of $x$ as the polar axis, a polar coordinate system is established. Suppose the polar equation of circle $C$ is $\rho=2\cos \theta$. The line $l$ intersects circle $C$ at points $A$ and $B$. Find the length of chord $AB$.

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