Word Count : 179

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प्रथम 'n' प्राकृतिक संख्याओं के वर्गों का योगफल सिद्ध करने के लिए गणितीय आगमन (प्रयोग) का उपयोग करते हैं। प्रतिज्ञा (प्रपोजिशन) यह है कि (\displaystyle 1^2+2^2+\cdots+n^2=\frac{n(n+1)(2n+1)}{6}) सबसे पहले आधार ___ _________ _________ _________ ____ _____ _______ __________ ___ _______ _____.
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