यदि \(a_1=4\) और \(a_{n+1}=2a_n+4n-1\) है तो \(a_3\) क्या होगा?
If \(a_1=4\) and \(a_{n+1}=2a_n+4n-1\), what is \(a_3\)?
Explanation opens after your attempt
C. (29)
Concept
\(a_2=2\times4+3=11\) and \(a_3=2\times11+7=29\). Exam tip: (4n-1) changes at each step.
Why this answer is correct
The correct answer is C. (29). \(a_2=2\times4+3=11\) and \(a_3=2\times11+7=29\). Exam tip: (4n-1) changes at each step.
Exam Tip
\(a_2=2\times4+3=11\) और \(a_3=2\times11+7=29\) है। (4n-1) का मान हर चरण में बदलता है।
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