
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
Simplify the expression $x^{-2} - y^{-1}$.
A) $\frac{x^2-y}{yx^2}$
B) $\frac{x^2+y}{yx^2}$
C) $\frac{y-x^2}{x^2y}$
D) $\frac{y-x^2}{yx^2}$

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