यदि \(a_n=7n+4\) है, तो \(a_8-a_5\) कितना होगा?
If \(a_n=7n+4\), what is \(a_8-a_5\)?
Explanation opens after your attempt
B. (21)
Concept
\(a_8=60\) and \(a_5=39\), so the difference is (21). Find the terms separately and subtract.
Why this answer is correct
The correct answer is B. (21). \(a_8=60\) and \(a_5=39\), so the difference is (21). Find the terms separately and subtract.
Exam Tip
\(a_8=60\) और \(a_5=39\), इसलिए अंतर (21) है। पदों को अलग निकालकर घटाएं।
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