Question

На картинке, помогите!!!

Answer 1

$\frac{1}{2} \sqrt{12} + \frac{1}{3} \sqrt{27} + \frac{1}{4} \sqrt{48} = \frac{1}{2} \sqrt{2 {}^{2} \times 3} + \frac{1}{3} \sqrt{3 {}^{2} \times 3} + \frac{1}{4} \sqrt{4 {}^{2} \times 3} = \frac{1}{2} \times 2 \sqrt{3} + \frac{1}{3} \times 3 \sqrt{3} + \frac{1}{4} \times 4\sqrt{3} = \sqrt{3} + \sqrt{3} + \sqrt{3} = 3\sqrt{3}$