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Aflati media geometrica a numerelor :
X=(7+2rad11) (8-rad18) y=(8+rad19) (7-2rad11)






Răspuns :

x=(7+2√11)(8-√19)

y=(8+√19)(7-2√11)

mg=√[(7+2√11)(8-√19)• (8+√19)(7-2√11)]

mg=√[(49-44)(64-19)]

mg=√(5•45)

mg=15