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受欢迎的代数 >

0.81-(0.57)/(sqrt(x))=0

解答

0.81 - \frac{0.57}{x} = 0

解答

x = \frac{361}{729}

+1

十进制

x = 0.49519 \dots

求解步骤

0.81 - \frac{0.57}{x} = 0

在两边乘以

x

0.81 x - \frac{0.57}{x} x = 0 \cdot x

化简

0.81 x - 0.57 = 0

在两边乘以

100

81 x - 57 = 0

将

57

到右边

81 x = 57

两边除以

81

x = \frac{19}{27}

两边进行平方:

x = \frac{361}{729}

x = \frac{361}{729}

验证解:

x = \frac{361}{729}

真

解是

x = \frac{361}{729}

作图

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