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受欢迎的代数 >

f^3=-216

解答

f^{3} = - 216

解答

f = - 6, f = 3 - 33 i, f = 3 + 33 i

求解步骤

f^{3} = - 216

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}

f = 3 - 216, f = 3 - 216 \frac{- 1 + 3 i}{2}, f = 3 - 216 \frac{- 1 - 3 i}{2}

3 - 216 = - 6

化简

3 - 216 \frac{- 1 + 3 i}{2} : 3 - 33 i

化简

3 - 216 \frac{- 1 - 3 i}{2} : 3 + 33 i

f = - 6, f = 3 - 33 i, f = 3 + 33 i

作图

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