The expression $2 \cdot \sqrt{3}$ represents the product of 2 and the square root of 3.

To approximate it numerically: $2 \cdot \sqrt{3} \approx 2 \cdot 1.732 = 3.464$

So, $2\cdot \sqrt{3} \approx 3.464$.

Would you like more details on this or have any questions?

Here are 5 related questions:

1. What is the value of $3 \cdot \sqrt{2}$?
2. How do you simplify expressions involving square roots?
3. Can you explain why $\sqrt{9} = 3$?
4. What is the value of $\sqrt{2} + \sqrt{3}$?
5. How can you rationalize the denominator in the fraction $\frac{1}{\sqrt{3}}$?

Tip: Remember that when multiplying a number by a square root, treat the square root as an irrational number unless it's a perfect square!