दिखाइए कि अनुक्रम \( a, a r, a r^{2}, \ldots a r^{n-1} \) तथा \( \mathrm{A}, \mathrm{AR}^{2} \ma...

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दिखाइए कि अनुक्रम \( a, a r, a r^{2}, \ldots a r^{n-1} \) तथा \( \mathrm{A}, \mathrm{AR}^{2} \mathrm{AR}^{2}, \ldots \mathrm{AR}^{n-1} \) के संगत पदों के गुणनफल से बना अनुक्रम गुणोत्तर श्रेणी होती है तथा सार्व अनुपात ज्ञात कीजिए।
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