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(2radical5x4radical5)/2?

Răspuns :

(2radical5x4radical5)/2= 8√25/2 = 8×5/2 = 40/2 = 20


[tex] \frac{2 \sqrt{5} \times 4 \sqrt{5} }{2} = \frac{8 \sqrt{5} \sqrt{5} }{2} = \frac{8 \sqrt{25} }{2} = \frac{8 \times 5}{2} = \frac{40}{2} = 20 [/tex]