Let \(x,y\) and \(z\) be positive numbers such that their harmonic mean is \(h\), and the harmonic mean of \(1+x,1+y,1+z\) is \(H\). Show that \(H\geq 1 +h\).

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TopNewestOh, that's a nice question. I think that with the right approach, it need not be lengthy. – Calvin Lin Staff · 11 months, 3 weeks ago

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– Souvik Pal · 11 months, 3 weeks ago

Sir can you just post the solution to it.Log in to reply