Question

Calculați media geometrica a numerelor 1si9 16si 9, 2 si 8,3 si 27

Answer 1

mg=√axb

1si9
mg=√1x9=√9=3

16 si 9
mg=√16x9=4x3=12

2 si 8
mg=√2x8=√16=4

3 si 27
mg=√3x27=√81=9

Answer 2

$\boxed{M_g= \sqrt{a \times b} } \\ \\ M_g= \sqrt{1 \times 9} \\ M_g= \sqrt{9} \\ M_g=3 \\ \\ M_g= \sqrt{16 \times 9} \\ M_g= \sqrt{16} \times \sqrt{9} \\ M_g=4 \times 3 \\ M_g=12 \\ \\ M_g= \sqrt{2 \times 8} \\ M_g= \sqrt{16} \\ M_g=4 \\ \\ M_g= \sqrt{3 \times 27} \\ M_g= \sqrt{81} \\ M_g=9$