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What is the sum of the last (6) terms in (1+2+3+\cdots+40)?(1+2+3+\cdots+40) में अंतिम (6) पदों का योग कितना है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (225)(225)
The sum of the last (6) terms is (35+36+37+38+39+40=225). For last terms, finding full (S_{40}) is not necessary.अंतिम (6) पदों का योग (35+36+37+38+39+40=225) है। अंतिम पदों के लिए पूरा (S_{40}) निकालना जरूरी नहीं है।
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