यदि \(a_n=42-6n\) है, तो \(a_5\) का मान क्या होगा?
If \(a_n=42-6n\), what is the value of \(a_5\)?
Explanation opens after your attempt
B. (12)
Concept
\(a_5=42-30=12\). In exams, calculate (6n) first and then subtract.
Why this answer is correct
The correct answer is B. (12). \(a_5=42-30=12\). In exams, calculate (6n) first and then subtract.
Exam Tip
\(a_5=42-30=12\) है। परीक्षा में पहले (6n) निकालें और फिर घटाएँ।
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