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What is the value of (S_{41}-S_{40})?(S_{41}-S_{40}) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (41)(41)
The difference of two consecutive sums is the new term, so (S_{41}-S_{40}=41). You can answer without finding the full sums.दो लगातार योगों का अंतर नया पद होता है इसलिए (S_{41}-S_{40}=41)। पूरा योग निकाले बिना भी उत्तर मिल सकता है।
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