Fewpal
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1 Answer

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Minimum value of

x² + y² + z²   will be when x = y = z = p ( let say)

given xyz = a³

=> p * p * p = a³

=> p³ = a³

=> p = a

hence x = y = z = a

x² + y² + z²  = a² + a² + a² = 3a²

minimum value of  x² + y² + z²  = 3a²

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