यदि \(a_1=2\) और \(a_{n+1}=a_n+4n\) है तो \(a_4\) क्या होगा?
If \(a_1=2\) and \(a_{n+1}=a_n+4n\), what is \(a_4\)?
Explanation opens after your attempt
Correct Answer
D. (26)
Concept
The terms are (2,6,14,26), so \(a_4=26\). Exam tip: (4n) changes at every step.
Why this answer is correct
The correct answer is D. (26). The terms are (2,6,14,26), so \(a_4=26\). Exam tip: (4n) changes at every step.
Exam Tip
पद (2,6,14,26) हैं इसलिए \(a_4=26\) है। (4n) का मान हर चरण में बदलता है।
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