The harmonic mean of the roots of the equation \( (5+\sqrt{2}) x^{2}-(4+\sqrt{5}) x+8+2 \sqrt{5}... VIDEO
The harmonic mean of the roots of the equation \( (5+\sqrt{2}) x^{2}-(4+\sqrt{5}) x+8+2 \sqrt{5}=0 \) is
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