गुणोत्तर श्रेढ़ी \(5,-15,45,-135,\ldots\) का छठा पद क्या है?
What is the sixth term of the geometric progression \(5,-15,45,-135,\ldots\)?
Explanation opens after your attempt
C. (-1215)
Concept
The common ratio is (-3), and the terms are (5,-15,45,-135,405,-1215). With a negative ratio, signs alternate.
Why this answer is correct
The correct answer is C. (-1215). The common ratio is (-3), and the terms are (5,-15,45,-135,405,-1215). With a negative ratio, signs alternate.
Exam Tip
सार्व अनुपात (-3) है और पद (5,-15,45,-135,405,-1215) हैं। ऋणात्मक अनुपात में चिह्न बदलते हैं।
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