美国高中数学:find a third degree polynomial with real coefficients that has 2 and 3-i as zeros.
人气:277 ℃ 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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