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6.1 複角公式

6.1 複角公式. 附加例題 1. 6.1 附加例題 1. 若 tan A 和 tan B 為方程 3 x 2  5 x + 1 = 0 的根，求 tan (A + B) 的值。. 解. tan A + tan B =. tan A tan B =. tan (A + B) =. =. =. 附加例題 1. 解. 若 tan A 和 tan B 為方程 3 x 2  5 x + 1 = 0 的根，求 tan (A + B) 的值。.

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6.1 複角公式

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  1. 6.1 複角公式 附加例題 1

  2. 6.1 附加例題 1 • 若tan A 和tan B 為方程 3x2 5x + 1 = 0 的根，求tan (A + B) 的值。 解

  3. tan A + tan B = tan A tan B = tan (A + B) = = = 附加例題 1 解 • 若 tan A 和 tan B 為方程3x2 5x + 1 = 0 的根，求tan (A + B) 的值。

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