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Radical din 8/14÷1/radical din 63

Răspuns :

√8/14:1/√63=
(2√2/√2x√7)x3√7=2x3=6
= 4/7 : 1/ 3 radical 7
= 4/7 x 3radical7
= 12radical 7/ 7
= 12 radical 7/ (radical7)^2
= 12/radical7 !