यदि किसी क्रम के पहले चार पद (5,12,19,26) हैं, तो \(a_n\) का सरल नियम क्या हो सकता है?
If the first four terms of a sequence are (5,12,19,26), what can be a simple rule for \(a_n\)?
Explanation opens after your attempt
A. \(a_n=7n-2\)
Concept
The first term is (5) and the difference is (7). \(a_n=7n-2\) gives the same sequence.
Why this answer is correct
The correct answer is A. \(a_n=7n-2\). The first term is (5) and the difference is (7). \(a_n=7n-2\) gives the same sequence.
Exam Tip
पहला पद (5) और अंतर (7) है। \(a_n=7n-2\) से वही क्रम मिलता है।
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