
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
Given a line $l$ passes through point $P(3, 4)$.
(1) If the inclination angle of line $l$ is $\theta$ ($\theta \neq 90°$), and line $l$ also passes through another point $(\cos\theta, \sin\theta)$, find the equation of line $l$ at this time;
(2) If line $l$ forms an isosceles right triangle with the two coordinate axes, find the equation of line $l$.

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