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受欢迎的代数 >

solvefor r,r^3-1000=0

解答

求解

r, r^{3} - 1000 = 0

解答

r = 10, r = - 5 + 53 i, r = - 5 - 53 i

求解步骤

r^{3} - 1000 = 0

将

1000

到右边

r^{3} = 1000

对于

x^{3} = f (a)

解为

x = 3 f (a), 3 f (a) \frac{- 1 - 3 i}{2}, 3 f (a) \frac{- 1 + 3 i}{2}

r = 31000, r = 31000 \frac{- 1 + 3 i}{2}, r = 31000 \frac{- 1 - 3 i}{2}

31000 = 10

化简

31000 \frac{- 1 + 3 i}{2} : - 5 + 53 i

化简

31000 \frac{- 1 - 3 i}{2} : - 5 - 53 i

r = 10, r = - 5 + 53 i, r = - 5 - 53 i

作图

流行的例子

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y^{3} = 2

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