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受欢迎的代数 >

16x^{-6}=0.25

解答

16 x^{- 6} = 0.25

解答

x = 2, x = - 2, x = 1 + 3 i, x = - 1 - 3 i, x = 1 - 3 i, x = - 1 + 3 i

求解步骤

16 x^{- 6} = 0.25

整理后得

\frac{16}{x ^{6}} = 0.25

在两边乘以

x^{6}

16 = 0.25 x^{6}

解

16 = 0.25 x^{6} : x = 2, x = - 2, x = 1 + 3 i, x = - 1 - 3 i, x = 1 - 3 i, x = - 1 + 3 i

x = 2, x = - 2, x = 1 + 3 i, x = - 1 - 3 i, x = 1 - 3 i, x = - 1 + 3 i

验证解

找到无定义的点（奇点）:

x = 0

将不在定义域的点与解相综合:

x = 2, x = - 2, x = 1 + 3 i, x = - 1 - 3 i, x = 1 - 3 i, x = - 1 + 3 i

作图

流行的例子

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so l v e f or r, F = \frac{K qq}{r ^{2}}

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