若a2-a+1分之a=3,求a4+a2+1分之a平方.若a2-a+1分之a=3,求a4+a2+1分之a2

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若a2-a+1分之a=3,求a4+a2+1分之a平方.若a2-a+1分之a=3,求a4+a2+1分之a2若a2-a+1分之a=3,求a4+a2+1分之a平方.若a2-a+1分之a=3,求a4+a2+1

若a2-a+1分之a=3,求a4+a2+1分之a平方.若a2-a+1分之a=3,求a4+a2+1分之a2
若a2-a+1分之a=3,求a4+a2+1分之a平方.
若a2-a+1分之a=3,求a4+a2+1分之a2

若a2-a+1分之a=3,求a4+a2+1分之a平方.若a2-a+1分之a=3,求a4+a2+1分之a2
由a/(a²-a+1)=3得a²+1=2a/3,故a²/(a4+a2+1)=a²/[(a²+1)²-a²]=a²/[4a²/9-a²]=-9/5