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展展展開 左邊a^2+b^2i^2+2abi=右邊4+3i a^2-b^2+2abi=4+3i a^2-b^2=4,2ab=3 剩下的,天才狗狗一定能做出來,解a、b的值 【加油!】 【能把我這層删了嗎……在樓下有點呆】
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