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If (S_n=15400), what will be the value of (S_n-S_{n-10})?यदि (S_n=15400), तो (S_n-S_{n-10}) का मान क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (1705)(1705)
(15400=S_{175}), so the sum of the last ten terms is (166+167+\cdots+175=1705). Add the last terms directly.(15400=S_{175}), इसलिए अंतिम दस पदों का योग (166+167+\cdots+175=1705) है। अंतिम पदों को सीधे जोड़ें।
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