अनुक्रम \(93,86,79,72,\ldots\) के लिए सही स्पष्ट नियम कौन-सा है?
Which explicit rule is correct for the sequence \(93,86,79,72,\ldots\)?
Explanation opens after your attempt
A. \(a_n=100-7n\)
Concept
At (n=1) it gives (93), and at (n=2) it gives (86), so \(a_n=100-7n\). In exams, match the first term of a decreasing sequence.
Why this answer is correct
The correct answer is A. \(a_n=100-7n\). At (n=1) it gives (93), and at (n=2) it gives (86), so \(a_n=100-7n\). In exams, match the first term of a decreasing sequence.
Exam Tip
(n=1) पर (93) और (n=2) पर (86) मिलता है, इसलिए \(a_n=100-7n\) है। परीक्षा में घटते अनुक्रम का पहला पद मिलाएँ।
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