2f(x)+xf(1/x)=x найдите f(10). Created by elnur0338. algebra-ru

x)=x найдите f(10)...

July 2022 1 8 Report

2f(x)+xf(1/x)=x
найдите f(10)

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bodan741

Подставив сперва вместо x = 10, а потом x=1/10 будем иметь $\begin{cases} 2x +10y = 10\\\frac{1}{10}x+2y = \frac{1}{10}\end{cases} \leftrightarrow x=\frac{19}{3}$

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bodan741 x=f(10), y = f(1/10)

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