यदि \(a_1=5\) और \(a_{n+1}=2a_n-2n\) है तो \(a_3\) क्या होगा?
If \(a_1=5\) and \(a_{n+1}=2a_n-2n\), what is \(a_3\)?
Explanation opens after your attempt
C. (12)
Concept
The terms are (5,8,12), so \(a_3=12\). Exam tip: do not change the order of multiplication and subtraction.
Why this answer is correct
The correct answer is C. (12). The terms are (5,8,12), so \(a_3=12\). Exam tip: do not change the order of multiplication and subtraction.
Exam Tip
पद (5,8,12) हैं इसलिए \(a_3=12\) है। गुणा और घटाव का क्रम न बदलें।
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