Question

Помогите..............​

Answer 1

1) $\frac{1}{2}$ * (1 + $\frac{1}{2}$) = $\frac{3}{4}$ = 0,75

2) $\frac{\sqrt{3}}{3}$ * ($\frac{\sqrt{3}}{2}$ + $\frac{\sqrt{3}}{2}$) = 1

3) $\frac{\sqrt{2} }{2}$ * (1 + $\frac{\sqrt{3} }{2}$) = $\frac{2\sqrt{2} + \sqrt{6} }{4}$