यदि समानांतर श्रेढ़ी में \(a_5=28\) और (d=4) है, तो \(a_2\) क्या होगा?
If an arithmetic progression has \(a_5=28\) and (d=4), what is \(a_2\)?
Explanation opens after your attempt
B. (16)
Concept
From \(a_5\) to \(a_2\), move back three gaps, so (a_2=28-3(4)=16). When moving backward, subtract the common difference.
Why this answer is correct
The correct answer is B. (16). From \(a_5\) to \(a_2\), move back three gaps, so (a_2=28-3(4)=16). When moving backward, subtract the common difference.
Exam Tip
\(a_5\) से \(a_2\) तक तीन अंतर पीछे जाना है, इसलिए (a_2=28-3(4)=16)। पीछे जाते समय समान अंतर घटाएं।
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