Question

va rog am nevoie urgent​

Answer 1

Răspuns:

2.

$|7 \sqrt{6} | > 0$

$7 \times 1.41 \times 1.73 = 17.07$

3.

$\sqrt{20} - \sqrt{5} = 2 \times 5 \sqrt{2} - \sqrt{5} =$

$= 10 \times 1.41 - 2.23 = 14.10 - 2.23 = 11.87$