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If R = $$(30^{65}-29^{65})/(30^{64}+29^{64})$$ ,then
$$0<R\leq0.1$$
$$0.1<R\leq0.5$$
$$0.5<R\leq1.0$$
$$R>1.0$$
$$\frac{(30^{65}-29^{65})}{(30^{64}+29^{64})} = ((30-29)*\frac{(30^{64}+30^{63}*29+....+29^{64})}{(30^{64}+29^{64})}$$ , which is greater than 1 . Hence option D.
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