Simplify Root Expression 25F120
1. **State the problem:** Simplify the expression $$\sqrt{3 + \sqrt{3}} - \sqrt{|1|} - \sqrt{1}$$.
2. **Recall important rules:**
- The square root of an absolute value is the absolute value of the square root: $$\sqrt{|a|} = |\sqrt{a}|$$.
- $$\sqrt{1} = 1$$.
3. **Simplify each term:**
- $$\sqrt{|1|} = \sqrt{1} = 1$$.
- $$\sqrt{1} = 1$$.
4. **Focus on simplifying $$\sqrt{3 + \sqrt{3}}$$:**
We try to express it as $$\sqrt{a} + \sqrt{b}$$ for some $$a$$ and $$b$$.
5. **Set up the equation:**
$$\sqrt{3 + \sqrt{3}} = \sqrt{a} + \sqrt{b}$$
Square both sides:
$$3 + \sqrt{3} = a + b + 2\sqrt{ab}$$
6. **Match terms:**
- The rational part: $$a + b = 3$$
- The irrational part: $$2\sqrt{ab} = \sqrt{3}$$
7. **Solve for $$a$$ and $$b$$:**
From the irrational part:
$$2\sqrt{ab} = \sqrt{3} \implies \sqrt{ab} = \frac{\sqrt{3}}{2} \implies ab = \frac{3}{4}$$
From the rational part:
$$a + b = 3$$
8. **Solve the system:**
Let $$a$$ and $$b$$ be roots of $$x^2 - 3x + \frac{3}{4} = 0$$.
Discriminant:
$$\Delta = 9 - 3 = 6$$
Roots:
$$x = \frac{3 \pm \sqrt{6}}{2}$$
9. **Therefore:**
$$\sqrt{3 + \sqrt{3}} = \sqrt{\frac{3 + \sqrt{6}}{2}} + \sqrt{\frac{3 - \sqrt{6}}{2}}$$
10. **Substitute back and simplify the original expression:**
$$\sqrt{3 + \sqrt{3}} - \sqrt{|1|} - \sqrt{1} = \left(\sqrt{\frac{3 + \sqrt{6}}{2}} + \sqrt{\frac{3 - \sqrt{6}}{2}}\right) - 1 - 1 = \sqrt{\frac{3 + \sqrt{6}}{2}} + \sqrt{\frac{3 - \sqrt{6}}{2}} - 2$$
**Final answer:**
$$\boxed{\sqrt{\frac{3 + \sqrt{6}}{2}} + \sqrt{\frac{3 - \sqrt{6}}{2}} - 2}$$