因?yàn)闉檫@個(gè)方稱的根1+i為根,因?yàn)閏onjugate原理,1-i也為這個(gè)方程的根
(x+1)(x-1-i)(x-1+i)=0
(x+1)(x^2-x+ix-x+1-i-ix+i+1)=0
(x+1)(x^2-2x+2)=0
(x^3-2x^2+2x+x^2-2x+2)=0
x^3-x^2+2=0
高次多項(xiàng)函數(shù)
高次多項(xiàng)函數(shù)
write the equation of lowest degree with real coefficient if two of its roots are -1 and 1+i
write the equation of lowest degree with real coefficient if two of its roots are -1 and 1+i
其他人氣:316 ℃時(shí)間:2020-06-16 16:56:38
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