समांतर श्रेणी \(14,10,6,2,\ldots\) का सामान्य पद क्या है?
What is the general term of the arithmetic progression \(14,10,6,2,\ldots\)?
Explanation opens after your attempt
B. \(a_n=18-4n\)
Concept
At (n=1) it gives (14), and at (n=2) it gives (10), so \(a_n=18-4n\). In exams, choose the rule after checking the first term.
Why this answer is correct
The correct answer is B. \(a_n=18-4n\). At (n=1) it gives (14), and at (n=2) it gives (10), so \(a_n=18-4n\). In exams, choose the rule after checking the first term.
Exam Tip
(n=1) पर (14) और (n=2) पर (10) मिलता है, इसलिए \(a_n=18-4n\) है। परीक्षा में पहला पद जाँचकर नियम चुनें।
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