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受欢迎的代数 >

(100)=2x^{100}ln(100)+20

解答

(100) = 2 x^{100} ln (100) + 20

解答

x = 100 \frac{20}{ln ( 10 )}, x = - 100 \frac{20}{ln ( 10 )}

+1

十进制

x = 1.02185 \dots, x = - 1.02185 \dots

求解步骤

(100) = 2 x^{100} ln (100) + 20

展开

2 x^{100} ln (100) + 20 : 4 ln (10) x^{100} + 20

100 = 4 ln (10) x^{100} + 20

交换两边

4 ln (10) x^{100} + 20 = 100

将

20

到右边

4 ln (10) x^{100} = 80

两边除以

4 ln (10)

x^{100} = \frac{20}{ln ( 10 )}

对于

x^{n} = f (a)

，n 为偶数，解为

x = n f (a), - n f (a)

x = 100 \frac{20}{ln ( 10 )}, x = - 100 \frac{20}{ln ( 10 )}

作图

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