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In the AP 104, 95, 86, …, what is the last term greater than −50?समान्तर श्रेणी 104, 95, 86, … में −50 से बड़ा अंतिम पद कौन-सा है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: −49−49
The first term is 104 and the common difference is −9, so the nth term is 104 − 9(n − 1). For n = 18, the term is −49; the next term, for n = 19, is −58. Therefore, −49 is the last term greater than −50.पहला पद 104 और सार्व अंतर −9 है, इसलिए nवाँ पद 104 − 9(n − 1) होगा। n = 18 पर पद −49 है; अगला पद, n = 19 पर, −58 है। इसलिए −50 से बड़ा अंतिम पद −49 है।
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