Question

va rog sa ma ajutati :D​

Answer 1

Răspuns:

1) a)

$\sqrt{2 } \times \sqrt{7} = \sqrt{14} = 7$

b)

$2 \sqrt{5} \: \: b = 4 \sqrt{2}$

$2 \sqrt{5 } < 4 \sqrt{2}$

c)

$mg = \sqrt{a \times b}$

$mg = \sqrt{ \sqrt{3 } \times \sqrt{27} } \\ mg = \sqrt{81} = 9$

d)

$( { \sqrt{3}) }^{3} \times \sqrt{147} \\ = 3 \times \sqrt{3} \times \sqrt{147} \\ = 3 \times \sqrt{441} \\ 3 \times 21 \\ = 63$