यदि \(a_n=5^n-n\) है तो \(a_3\) का मान क्या होगा?
If \(a_n=5^n-n\) then what is the value of \(a_3\)?
Explanation opens after your attempt
B. (122)
Concept
\(a_3=125-3=122\). In exams find the power and subtract the term number.
Why this answer is correct
The correct answer is B. (122). \(a_3=125-3=122\). In exams find the power and subtract the term number.
Exam Tip
\(a_3=125-3=122\) है। परीक्षा में घात निकालकर पद संख्या घटाएँ।
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