अनुक्रम \(42,37,32,27,\ldots\) का सामान्य पद क्या है?
What is the general term of the sequence \(42,37,32,27,\ldots\)?
Explanation opens after your attempt
B. \(a_n=47-5n\)
Concept
At (n=1) it gives (42), and at (n=2) it gives (37), so \(a_n=47-5n\). In exams, always match the first term in a decreasing sequence.
Why this answer is correct
The correct answer is B. \(a_n=47-5n\). At (n=1) it gives (42), and at (n=2) it gives (37), so \(a_n=47-5n\). In exams, always match the first term in a decreasing sequence.
Exam Tip
(n=1) पर (42) और (n=2) पर (37) मिलता है, इसलिए \(a_n=47-5n\) है। परीक्षा में घटते अनुक्रम में पहला पद जरूर मिलाएँ।
Login to save your score, XP, coins and progress.
