यदि \(a_n=n^2+5n\) है, तो \(a_4:a_2\) का अनुपात क्या होगा?
If \(a_n=n^2+5n\), what is the ratio \(a_4:a_2\)?
Explanation opens after your attempt
B. (18:7)
Concept
\(a_4=36\) and \(a_2=14\), so the ratio is (18:7). In exams, do not forget to simplify the ratio.
Why this answer is correct
The correct answer is B. (18:7). \(a_4=36\) and \(a_2=14\), so the ratio is (18:7). In exams, do not forget to simplify the ratio.
Exam Tip
\(a_4=36\) और \(a_2=14\), इसलिए अनुपात (18:7) है। परीक्षा में अनुपात को सरल करना न भूलें।
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