यदि \(a_1=6\) और (a_{n+1}=a_n+n(n+4)+2) है तो \(a_4\) क्या होगा?
If \(a_1=6\) and (a_{n+1}=a_n+n(n+4)+2), what is \(a_4\)?
Explanation opens after your attempt
C. (44)
Concept
The added values are (7,14,23), so \(a_4=50\). Exam tip: calculate the product and then add (2).
Why this answer is correct
The correct answer is C. (44). The added values are (7,14,23), so \(a_4=50\). Exam tip: calculate the product and then add (2).
Exam Tip
जुड़ने वाले मान (7,14,23) हैं इसलिए \(a_4=50\) नहीं बल्कि (50) है। सही विकल्पों में (50) होना चाहिए।
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