问题

נתון כי `1 = 1/a -(a)/(5) +(3b)/(5a) = 1/b-b/3+(7c)/(3b) = (1)/(c) - (c)/(7) + (5a)/(7c)` מצאו את `a^2 + b^2 + c^2`.

难度等级(1 非常简单 - 10 非常困难):3

主题:
代数学 -> 代数技巧 代数学 -> 方程
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