यदि \(a_n=55-5n\) है, तो इस समानांतर श्रेढ़ी का समान अंतर क्या है?
If \(a_n=55-5n\), what is the common difference of this arithmetic progression?
Explanation opens after your attempt
A. (-5)
Concept
In the linear form, the coefficient of (n) is (-5), so the common difference is (-5). Always check the sign of the coefficient.
Why this answer is correct
The correct answer is A. (-5). In the linear form, the coefficient of (n) is (-5), so the common difference is (-5). Always check the sign of the coefficient.
Exam Tip
रैखिक रूप में (n) का गुणांक (-5) है, इसलिए समान अंतर (-5) है। गुणांक का चिह्न जरूर देखें।
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