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受欢迎的代数 >

40=((0.0826)(0.015)(200)(x)^2)/((0.1)^5)

解答

40 = \frac{( 0.0826 ) ( 0.015 ) ( 200 ) ( x ) ^{2}}{( 0.1 ) ^{5}}

解答

x = \frac{2}{1239}, x = - \frac{2}{1239}

+1

十进制

x = 0.04017 \dots, x = - 0.04017 \dots

求解步骤

40 = \frac{( 0.0826 ) ( 0.015 ) ( 200 ) x ^{2}}{( 0.1 ) ^{5}}

交换两边

\frac{( 0.0826 ) ( 0.015 ) ( 200 ) x ^{2}}{( 0.1 ) ^{5}} = 40

在两边乘以

0. 1^{5}

0.2478 x^{2} = 0.0004

两边除以

0.2478

x^{2} = \frac{0.0004}{0.2478}

对于

x^{2} = f (a)

解为

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

x = \frac{0.0004}{0.2478}, x = - \frac{0.0004}{0.2478}

\frac{0.0004}{0.2478} = \frac{2}{1239}

- \frac{0.0004}{0.2478} = - \frac{2}{1239}

x = \frac{2}{1239}, x = - \frac{2}{1239}

作图

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solvefor x,ln(y)=(x^2)/2+c

so l v e f or x, ln (y) = \frac{x ^{2}}{2} + c

1.36x^2+27.8x+304=500

1.36 x^{2} + 27.8 x + 304 = 500

(400+j^{1000})I^2-j^{90}I^1=0

(400 + j^{1000}) I^{2} - j^{90} I^{1} = 0

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