यदि \(a_n=3^n-n^2\) है तो \(a_5\) का मान क्या होगा?
If \(a_n=3^n-n^2\), what will be the value of \(a_5\)?
Explanation opens after your attempt
C. (218)
Concept
\(a_5=3^5-5^2=243-25=218\). Exam tip: calculate the power and square separately.
Why this answer is correct
The correct answer is C. (218). \(a_5=3^5-5^2=243-25=218\). Exam tip: calculate the power and square separately.
Exam Tip
\(a_5=3^5-5^2=243-25=218\) है। घात और वर्ग अलग-अलग निकालें।
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