
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 that $$\sqrt {0.1587}$$≈0.3984, $$\sqrt {1.587}$$≈1.260, $$\sqrt[3]{0.1587}$$≈0.5414, $$\sqrt[3]{1.587}$$≈1.166, can you find without using a calculator:
(1) $$\sqrt {15.87}$$≈\_\_\_\_\_\_;
(2) - $$\sqrt {0.001587}$$≈\_\_\_\_\_\_;
(3) $$\sqrt[3]{1.587\times 10^{-4}}$$≈\_\_\_\_\_\_.

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