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What is the value of (S_{49}+S_{51}-2S_{50})?(S_{49}+S_{51}-2S_{50}) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (1)(1)
(S_{51}=S_{50}+51) and (S_{49}=S_{50}-50), so the value is (1). Use differences of consecutive sums.(S_{51}=S_{50}+51) और (S_{49}=S_{50}-50), इसलिए मान (1) है। लगातार योगों के अंतर का उपयोग करें।
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