Question

Media geometrica a numerelor √7-√3 si √7+√3 este.....??????
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Answer 1

Formula de calcul pentru media geometrica este:

$M_{g}= \sqrt{a*b} \\ \\ M_{g}= \sqrt{ (\sqrt{7}- \sqrt{3}) *(\sqrt{7}+ \sqrt{3}) }$

se aplica formula: (a-b) (a+b) = a² - b²

$M_{g}= \sqrt{7-3} \\ \\ M_{g}= \sqrt{4} \\ \\ M_{g}= 2$

Answer 2

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