अनुक्रम \(28,22,16,10,\ldots\) का (n)वाँ पद कौन-सा है?
What is the (n)th term of the sequence \(28,22,16,10,\ldots\)?
Explanation opens after your attempt
A. (34-6n)
Concept
The first term is (28) and the difference is (-6), so (a_n=28+(n-1)(-6)=34-6n). Pay attention to the sign in a decreasing sequence.
Why this answer is correct
The correct answer is A. (34-6n). The first term is (28) and the difference is (-6), so (a_n=28+(n-1)(-6)=34-6n). Pay attention to the sign in a decreasing sequence.
Exam Tip
पहला पद (28) और अंतर (-6) है, इसलिए (a_n=28+(n-1)(-6)=34-6n)। घटती श्रेढ़ी में चिह्न पर ध्यान दें।
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