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受欢迎的代数 >

-2/(c^3)+0.45=0

解答

- \frac{2}{c ^{3}} + 0.45 = 0

解答

c = \frac{2 3 5}{3 9}, c = \frac{2 3 5 ( - \frac{1}{2} + \frac{3}{2} i )}{3 9}, c = \frac{2 3 5 ( - \frac{1}{2} - \frac{3}{2} i )}{3 9}

求解步骤

- \frac{2}{c ^{3}} + 0.45 = 0

在两边乘以

c^{3}

- 2 + 0.45 c^{3} = 0

解

- 2 + 0.45 c^{3} = 0 : c = \frac{2 3 5}{3 9}, c = \frac{2 3 5 ( - \frac{1}{2} + \frac{3}{2} i )}{3 9}, c = \frac{2 3 5 ( - \frac{1}{2} - \frac{3}{2} i )}{3 9}

c = \frac{2 3 5}{3 9}, c = \frac{2 3 5 ( - \frac{1}{2} + \frac{3}{2} i )}{3 9}, c = \frac{2 3 5 ( - \frac{1}{2} - \frac{3}{2} i )}{3 9}

验证解

找到无定义的点（奇点）:

c = 0

将不在定义域的点与解相综合:

c = \frac{2 3 5}{3 9}, c = \frac{2 3 5 ( - \frac{1}{2} + \frac{3}{2} i )}{3 9}, c = \frac{2 3 5 ( - \frac{1}{2} - \frac{3}{2} i )}{3 9}

作图

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