z = 、. (. )2. 2. 2. , yx z = ,則. (. )2. 1. 2. 1. 2. 1. , yyxx zz. +. +. = +. (1'). ▫ 複數之相乘 . 需把握逐項相乘的原則。令. 1. 1. 1 iy xz +. = 、. 2. 2. 2 iy xz +. = ,則其相乘積為:.
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