यदि \(a_{n+1}-a_n=8\) और \(a_4=30\) है, तो \(a_{16}\) क्या होगा?
If \(a_{n+1}-a_n=8\) and \(a_4=30\), what is \(a_{16}\)?
Explanation opens after your attempt
C. (126)
Concept
Here (d=8), so \(a_{16}=a_4+12d=30+96=126\). \(a_{n+1}-a_n\) is the common difference of the AP.
Why this answer is correct
The correct answer is C. (126). Here (d=8), so \(a_{16}=a_4+12d=30+96=126\). \(a_{n+1}-a_n\) is the common difference of the AP.
Exam Tip
यहां (d=8), इसलिए \(a_{16}=a_4+12d=30+96=126\)। \(a_{n+1}-a_n\) ही AP का सार्व अंतर होता है।
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