यदि \(f_1=3\) और \(f_n=f_{n-1}+3n-1\) है, तो पहले चार पदों का योग क्या होगा?
If \(f_1=3\) and \(f_n=f_{n-1}+3n-1\), what is the sum of the first four terms?
Explanation opens after your attempt
Correct Answer
A. चौवन(54)
Concept
The first four terms are (3), (8), (16), and (27), and their sum is (54). In exams, add all required terms for a sum.
Why this answer is correct
The correct answer is A. चौवन / (54). The first four terms are (3), (8), (16), and (27), and their sum is (54). In exams, add all required terms for a sum.
Exam Tip
पहले चार पद (3), (8), (16), (27) हैं और उनका योग (54) है। परीक्षा में योग के लिए सभी आवश्यक पद जोड़ें।
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