Question

Rezolvati urmatoarele probleme
V2 x (V6 - 2V10)
3 X (V20 + V3) - V3 X (V5 + 3)
(V18 + V12) x 3V2 - V216

Answer 1

Răspuns:

$\sqrt{2} ( \sqrt{6} - 2 \sqrt{10} ) = \sqrt{12} - 2 \sqrt{20} = 2 \sqrt{3} - 4 \sqrt{5}$

$3( \sqrt{20} + \sqrt{3} ) - \sqrt{3} \times ( \sqrt{5} + 3) = 3(2 \sqrt{5} + 3) - \sqrt{15} - 3 \sqrt{3} = 6 \sqrt{5} + 9 - \sqrt{15} - 3 \sqrt{3}$

$( \sqrt{18} + \sqrt{12} ) \times 3 \sqrt{2} - \sqrt{216} = (3 \sqrt{2} + 2 \sqrt{3} ) \times 3 \sqrt{2} - 6 \sqrt{6} = 18 + 6 \sqrt{6} - 6 \sqrt{6} = 18$