Question

Va rog ajutor plsssss​

Answer 1

Răspuns:

$b = \frac{ \sqrt{2}(2 \sqrt{2} + \sqrt{6}) }{2} \\ b = \frac{2 \sqrt{2} \times \sqrt{2} + \sqrt{6 \times 2} }{2} \\ b = \frac{2 \times 2 + 2 \sqrt{3} } {2} \\ b = 2 + \sqrt{3}$