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यदि p, q, r गुणोत्तर श्रेणी में है तथा स...

यदि p, q, r गुणोत्तर श्रेणी में है तथा समीकरणों `px^(2)+2qx+r=0` और `ax^(2)+2ex+f=0` एक उभयनिष्ठ मूल रखते हो, तो दर्शाइए कि `(d)/(p), (e )/(q),(f)/(r )` समांतर श्रेणी में है।

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