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If a,b,c,d ,e are +ve real numbers such ...

If `a,b,c,d ,e` are +ve real numbers such that `a+b+c+d+e=8 and a^2 + b^2 +c^2 + d^2 +e^2 = 16`, then the range of 'e' is

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The correct Answer is:
`e in [0,16/5]`
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