Question

calculati media geometrica si armonica a numerelor 625 si 16
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Answer 1

$\it m_{g} = \sqrt{a \cdot b} = \it \sqrt{625 \cdot 16} = \sqrt{625} \cdot \sqrt{16} = 25 \cdot 4 = 100 \\ \\  m_{h} = \frac{2ab}{a~+~b} = \frac{2 \cdot 625 \cdot 16}{625 ~+ ~16} = \frac{1250 \cdot 16}{641} = \frac{20000}{641}$