गुणोत्तर श्रेढ़ी \(8,-16,32,-64,\ldots\) का सातवाँ पद क्या है?
What is the seventh term of the geometric progression \(8,-16,32,-64,\ldots\)?
Explanation opens after your attempt
C. (512)
Concept
The common ratio is (-2), and (a_7=8(-2)6=512). An even power of a negative ratio is positive.
Why this answer is correct
The correct answer is C. (512). The common ratio is (-2), and (a_7=8(-2)6=512). An even power of a negative ratio is positive.
Exam Tip
सार्व अनुपात (-2) है और (a_7=8(-2)6=512) है। ऋणात्मक अनुपात की सम घात धनात्मक होती है।
Login to save your score, XP, coins and progress.
