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दिखाइए कि अनुक्रम a,ar,ar^(2),......,ar^...

दिखाइए कि अनुक्रम `a,ar,ar^(2),......,ar^(n-1)" तथा "A,AR,AR^(2),.......,AR^(n-1)` के संगत पदों के गुणनफल से बना अनुक्रम गुणोत्तर श्रेढ़ी होती है तथा सार्व अनुपात ज्ञात कीजिए।

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