If a,b,c,d be four distinct positive quantities in G.P., prove that: 1/ab + 1/cd > 2( 1/bd + 1/ac - 1/ad)
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gevebdbdkrjdidhfjdjshdgsgsdhehrbrhrhrhrhhrrgrheehuedjhddhueueieuejdbfhdjsieisjejeheudhdhdhejdhdhhddnjdejididhdbdhsueiehdhxndjdjsiwiejdbbdbdhdjdjdjdjdjdjdbdbdbebdhdjdiiddhbdhdhdhdjdhehdhehdjdjxixixjsjsbsbsjsisisidixixidsosokwnwbwhwjwjsieiwieiwjwbbejsidodididjdjdjdjeieoeoeoe
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