
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
Let $\mathbf{a} = \begin{pmatrix} 3 \\ 2 \\ 4 \end{pmatrix}.$ Find the vector $\mathbf{b}$ such that $\mathbf{a} \cdot \mathbf{b} = 20$ and
\[\mathbf{a} \times \mathbf{b} = \begin{pmatrix} 10 \\ -18 \\ 14 \end{pmatrix}.\]

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