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受欢迎的代数 >

solvefor d,(e^2)/5-(d^2)/2+(f^2)/3 =9

解答

求解

d, \frac{e ^{2}}{5} - \frac{d ^{2}}{2} + \frac{f ^{2}}{3} = 9

解答

d = i \frac{270 - 6 e ^{2} - 10 f ^{2}}{15}, d = - i \frac{270 - 6 e ^{2} - 10 f ^{2}}{15}

求解步骤

\frac{e ^{2}}{5} - \frac{d ^{2}}{2} + \frac{f ^{2}}{3} = 9

将

\frac{f ^{2}}{3}

到右边

\frac{e ^{2}}{5} - \frac{d ^{2}}{2} = 9 - \frac{f ^{2}}{3}

将

\frac{e ^{2}}{5}

到右边

- \frac{d ^{2}}{2} = 9 - \frac{f ^{2}}{3} - \frac{e ^{2}}{5}

在两边乘以

2

- d^{2} = 18 - \frac{2 f ^{2}}{3} - \frac{2 e ^{2}}{5}

两边除以

- 1

d^{2} = - \frac{270 - 6 e ^{2} - 10 f ^{2}}{15}

对于

x^{2} = f (a)

解为

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

d = - \frac{270 - 6 e ^{2} - 10 f ^{2}}{15}, d = - - \frac{270 - 6 e ^{2} - 10 f ^{2}}{15}

化简

- \frac{270 - 6 e ^{2} - 10 f ^{2}}{15} : i \frac{270 - 6 e ^{2} - 10 f ^{2}}{15}

化简

- - \frac{270 - 6 e ^{2} - 10 f ^{2}}{15} : - i \frac{270 - 6 e ^{2} - 10 f ^{2}}{15}

d = i \frac{270 - 6 e ^{2} - 10 f ^{2}}{15}, d = - i \frac{270 - 6 e ^{2} - 10 f ^{2}}{15}

作图

流行的例子

solvefor x,x^2p+y^2q=z^2

so l v e f or x, x^{2} p + y^{2} q = z^{2}

solvefor x,a^2-x^2=a^2cos(o^2)

so l v e f or x, a^{2} - x^{2} = a^{2} cos (o^{2})

(3a-2)(2a+1)-a(a+12)=0

(3 a - 2) (2 a + 1) - a (a + 12) = 0

1 6^{x} + 2 0^{x} = 2 5^{x}

3^{x} + 3^{- x} = 2