यदि \(a_1=3\) और \(a_{n+1}=n a_n+4\) है तो \(a_3\) क्या होगा?
If \(a_1=3\) and \(a_{n+1}=n a_n+4\), what is \(a_3\)?
Explanation opens after your attempt
B. (18)
Concept
\(a_2=1\times3+4=7\) and \(a_3=2\times7+4=18\). Exam tip: change the value of (n) at each step.
Why this answer is correct
The correct answer is B. (18). \(a_2=1\times3+4=7\) and \(a_3=2\times7+4=18\). Exam tip: change the value of (n) at each step.
Exam Tip
\(a_2=1\times3+4=7\) और \(a_3=2\times7+4=18\) है। (n) का मान हर चरण में बदलें।
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