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If (a=3) and (d=8), what are the first three terms?यदि (a=3) और (d=8) है, तो पहले तीन पद कौन-से होंगे?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (3, 11, 19)(3, 11, 19)
In an arithmetic progression, the first term is \(a=3\) and the common difference is \(d=8\). So, the second term is \(3+8=11\), and the third term is \(11+8=19\). Hence, the first three terms are \((3, 11, 19)\). In option A, 8 has not been added to 3 to obtain the second term. Exam tip: check each successive term by adding \(d\).समांतर श्रेणी में पहला पद \(a=3\) है और सार्वांतर \(d=8\) है। इसलिए दूसरा पद \(3+8=11\) तथा तीसरा पद \(11+8=19\) होगा। अतः पहले तीन पद \((3, 11, 19)\) हैं। विकल्प A में 3 के बाद 8 जोड़ा नहीं गया है। परीक्षा टिप: पद लिखते समय प्रत्येक अगले पद में \(d\) जोड़कर जाँच करें।
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