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在复数范围里,一元n次方程(n≥1)至少有一个根.据此即可得出推论:在复数范围内,一元n次方程(n≥1)有且仅有n个根(k重根作k个根计).
In the complex number range, the unitary nth order equation (n≥1) has at least one root. From this, it can be concluded that in the complex number range, the unitary nth order equation (n≥1) has only n roots (k Heavy root for k root meter).