अनुक्रम \(10,7,4,1,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(10,7,4,1,\ldots\)?
Explanation opens after your attempt
A. (13-3n)
Concept
The first term is (10) and the difference is (-3), so (a_n=10+(n-1)(-3)=13-3n). In a decreasing progression the difference is negative.
Why this answer is correct
The correct answer is A. (13-3n). The first term is (10) and the difference is (-3), so (a_n=10+(n-1)(-3)=13-3n). In a decreasing progression the difference is negative.
Exam Tip
पहला पद (10) और अंतर (-3) है, इसलिए (a_n=10+(n-1)(-3)=13-3n)। घटती श्रेढ़ी में अंतर ऋणात्मक होता है।
Login to save your score, XP, coins and progress.
