यदि \(a_n=kn-7\) और \(a_{17}-a_5=96\) है, तो \(a_{29}\) क्या होगा?
If \(a_n=kn-7\) and \(a_{17}-a_5=96\), what is \(a_{29}\)?
Explanation opens after your attempt
Correct Answer
B. (225)
Concept
(12k=96), so (k=8) and \(a_{29}=8\times29-7=225\). In a direct formula, find the coefficient first.
Why this answer is correct
The correct answer is B. (225). (12k=96), so (k=8) and \(a_{29}=8\times29-7=225\). In a direct formula, find the coefficient first.
Exam Tip
(12k=96), इसलिए (k=8) और \(a_{29}=8\times29-7=225\)। प्रत्यक्ष सूत्र में पहले गुणांक निकालें।
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