The equation of the lowest degree with rational
coefficients having a root V5 +i is
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Step-by-step explanation:
Applyingx4−2(a+b)x2+(a−b)2wherea+bisarootGiventherootas5+7.Otherrootswouldbe5−7,−5−7,−5+7Therequiredequationisx4−2(5+7)x2+(5−7)2=0x4−24x2+4=0
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