यदि \(a_n=15-3n\) है, तो \(a_4\) का मान क्या होगा?
If \(a_n=15-3n\), what is the value of \(a_4\)?
Explanation opens after your attempt
C. (3)
Concept
\(a_4=15-12=3\). In exams, subtract (3n) correctly in a decreasing rule.
Why this answer is correct
The correct answer is C. (3). \(a_4=15-12=3\). In exams, subtract (3n) correctly in a decreasing rule.
Exam Tip
\(a_4=15-12=3\) है। परीक्षा में घटते नियम में (3n) सही घटाएँ।
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