यदि \(a_n=2n^2+2n\) है, तो कौन-सा पद (60) के बराबर होगा?
If \(a_n=2n^2+2n\), which term will be equal to (60)?
Explanation opens after your attempt
C. (n=5)
Concept
Putting (n=5) in \(2n^2+2n=60\) gives (60). In exams, you can also check quickly by substituting options.
Why this answer is correct
The correct answer is C. (n=5). Putting (n=5) in \(2n^2+2n=60\) gives (60). In exams, you can also check quickly by substituting options.
Exam Tip
\(2n^2+2n=60\) में (n=5) रखने पर मान (60) मिलता है। परीक्षा में विकल्पों को रखकर भी जल्दी जाँच सकते हैं।
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