Question

media aritmetică si geometrica a ne 7-√13 si 7+√13

Answer 1

$ma= \frac{7- \sqrt{13} + 7+ \sqrt{13}}{2}$

$ma= \frac{14}{2}$

$ma=7$

$mg = \sqrt{(7 - \sqrt{13} ) (7 + \sqrt{13}) }$

$mg = \sqrt{ {7}^{2} - { (\sqrt{13}) }^{2} }$

$mg = \sqrt{49 - 13}$

$mg = \sqrt{36}$

$mg = 6$

Answer 2

Media aritmetică =(a+b)/2=(7-✓13+7+√13)/2=14/2=7
Media geometrica=✓(7-√13)(7+√13)=√(7²-√13²)=√49-13=√36=6