If the harmonic mean of the roots of \sqrt2x^3-bx+(8-2\sqrt5)=0 is 4, then the value of b =

AP EAMCET Engineering 2015 Code C Paper

Section: Mathematics

Question : 58 of 160

Marks: +1, -0

If the harmonic mean of the roots of √2x3−bx+(8−2√5)=0 is 4, then the value of b =

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