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受欢迎的 Geometry >

solvefor x, 9/(u(x)^3)= x/(5u(x)^5)

解答

求解

x, \frac{9}{u ( x ) ^{3}} = \frac{x}{5 u ( x ) ^{5}}

解答

x = \frac{1}{45}; u \neq = 0

+1

十进制

x = 0.02222 \dots

求解步骤

\frac{9}{u x ^{3}} = \frac{x}{5 u x ^{5}}

使用分式交叉相乘

45 x^{4} u = x^{3} u

解

45 x^{4} u = x^{3} u : x = 0, x = \frac{1}{45}; u \neq = 0

x = 0, x = \frac{1}{45}; u \neq = 0

验证解

找到无定义的点（奇点）:

x = 0

因为方程对以下值无定义:

0

x = \frac{1}{45}; u \neq = 0

作图

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