समानांतर श्रेढ़ी \(9,17,25,33,\ldots\) का सामान्य पद कौन-सा है?
What is the general term of the arithmetic progression \(9,17,25,33,\ldots\)?
Explanation opens after your attempt
A. \(a_n=8n+1\)
Concept
The first term is (9) and (d=8), so (a_n=9+(n-1)8=8n+1). You can also check an option by putting (n=1).
Why this answer is correct
The correct answer is A. \(a_n=8n+1\). The first term is (9) and (d=8), so (a_n=9+(n-1)8=8n+1). You can also check an option by putting (n=1).
Exam Tip
पहला पद (9) और (d=8) है इसलिए (a_n=9+(n-1)8=8n+1)। विकल्प को (n=1) रखकर भी जांच सकते हैं।
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