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Simple but lengthy

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 \(H\geq 1 +h\).

Note by Alpha Beta
11 months, 3 weeks ago

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Oh, 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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@Calvin Lin Sir can you just post the solution to it. Souvik Pal · 11 months, 3 weeks ago

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