0 reads0 ratings0 helpful
What is the (13)th term in the AP (2,9,16,23,\ldots)?एपी (2,9,16,23,\ldots) में (13)वाँ पद क्या होगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: \(86\)\(86\)
The first term is \(a=2\) and the common difference is \(d=9-2=7\). The \(n\)th term is given by \(a_n=a+(n-1)d\). Therefore, \(a_{13}=2+(13-1)\times7=2+84=86\). Hence, \(86\) is correct. \(84\) results if the first term \(2\) is mistakenly not added. Exam tip: always use \((n-1)\) for the \(n\)th term of an AP.इस एपी का प्रथम पद \(a=2\) और सार्वांतर \(d=9-2=7\) है। \(n\)वाँ पद \(a_n=a+(n-1)d\) होता है। अतः \(a_{13}=2+(13-1)\times7=2+84=86\)। इसलिए सही उत्तर \(86\) है। \(84\) तब मिलता है जब प्रथम पद \(2\) को जोड़ना भूल जाएँ। परीक्षा टिप: \(n\)वें पद के लिए हमेशा \((n-1)\) का प्रयोग करें।
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
