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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 श्रेणी होती है तथा सार्वअनुपात ज्ञात कीजिए।

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