यदि (a_n=\frac{n(3n+2)}{4}) है तो \(a_4\) का मान क्या होगा?
If (a_n=\frac{n(3n+2)}{4}) then what is the value of \(a_4\)?
Explanation opens after your attempt
C. (14)
Concept
\(a_4=\frac{4\times14}{4}=14\). In exams multiply first and then divide by (4).
Why this answer is correct
The correct answer is C. (14). \(a_4=\frac{4\times14}{4}=14\). In exams multiply first and then divide by (4).
Exam Tip
\(a_4=\frac{4\times14}{4}=14\) है। परीक्षा में पहले गुणन करें फिर (4) से भाग दें।
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