यदि \(a_1=8\) और (a_{n+1}=a_n+n(n+2)+2^n) है तो \(a_4\) क्या होगा?
If \(a_1=8\) and (a_{n+1}=a_n+n(n+2)+2^n), what is \(a_4\)?
Explanation opens after your attempt
C. (48)
Concept
The added values are (5,12,23), so \(a_4=48\). Exam tip: calculate both the product and the power.
Why this answer is correct
The correct answer is C. (48). The added values are (5,12,23), so \(a_4=48\). Exam tip: calculate both the product and the power.
Exam Tip
जुड़ने वाले मान (5,12,23) हैं इसलिए \(a_4=48\) है। गुणनफल और घात दोनों निकालें।
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