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数学
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美国高中数学：find a third degree polynomial with real coefficients that has 2 and 3-i as zeros.
人气：332 ℃ 时间：2020-01-28 13:18:35
解答
这个多项式就是(x-2)(x-3+i)(x-3-i) =(x-2)(x^2-6x+10)为什么有(x-3-i)实系数多项式的复根是成对出现的，有a+bi就有a-bi
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