यदि \(a_1=2\) और \(a_{n+1}=a_n+2a_1\) है तो \(a_4\) क्या होगा?
If \(a_1=2\) and \(a_{n+1}=a_n+2a_1\), what is \(a_4\)?
Explanation opens after your attempt
C. (14)
Concept
Here \(2a_1=4\) is added each time, so the terms are (2,6,10,14). Exam tip: \(a_1\) stays constant.
Why this answer is correct
The correct answer is C. (14). Here \(2a_1=4\) is added each time, so the terms are (2,6,10,14). Exam tip: \(a_1\) stays constant.
Exam Tip
यहाँ \(2a_1=4\) हर बार जुड़ता है इसलिए पद (2,6,10,14) हैं। \(a_1\) स्थिर रहता है।
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