यदि (a=25) और (d=-5) है, तो \(a_7\) क्या होगा?
If (a=25) and (d=-5), what will \(a_7\) be?
Explanation opens after your attempt
B. (-5)
Concept
(a_7=25+6(-5)=-5). Keep the negative common difference with the correct sign.
Why this answer is correct
The correct answer is B. (-5). (a_7=25+6(-5)=-5). Keep the negative common difference with the correct sign.
Exam Tip
(a_7=25+6(-5)=-5)। ऋणात्मक समान अंतर को सही चिह्न के साथ रखें।
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