Question

aratati ca
$6\sqrt{2} + 2(1 - \sqrt{18}) = 2$
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Answer 1

Răspuns:

6√2+2(1-√18)=2

√18=3√2

6√2+2(1-3√2)=2

6√2+2-6√2=2

(6√2 cu -6√2 se reduc)

0+2=2

2=2 (Adevărat)