X/X²+x+1=1/3,求分式x²/x4+x²+1的值
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X/X²+x+1=1/3,求分式x²/x4+x²+1的值
X/X²+x+1=1/3,求分式x²/x4+x²+1的值
X/X²+x+1=1/3,求分式x²/x4+x²+1的值
x/(x²+x+1)=1/3
x²+x+1=3x
x²-2x+1=0
(x-1)²=0
解得:x=1
代入所求,有:
x²/(x^4+x²+1)=1²/(1^4+1²+1)=1/3