Question

Aflati media aritmetica a numerelor x si y stiind ca:
a) x=(3^7×3^5)^3 : 9^17 si y=(7^17)^3:49^25

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Answer 1

x = (3⁷ · 3⁵)³ : 9¹⁷ 
y = (7¹⁷)³ : 49²⁵ 
~
$m_{a}=?$
~
x = (3¹²)³ : 9¹⁷ 
x = 3³⁶ : 9¹⁷
x = 9¹⁸ : 9¹⁷
x = 9

y = (7¹⁷)³ : 49²⁵
y = 7⁵¹ : 49²⁵
y = 7⁵¹ : 7⁵⁰
y = 7

$m_{a}=(y+x):2\\m_{a}=(7+9):2 \\ m_{a}=16:2 \\ m_{a}=8$

/robèrtinni