यदि \(a_1=9\) और (r=-2) है, तो \(a_8\) क्या होगा?
If \(a_1=9\) and (r=-2), what is \(a_8\)?
Explanation opens after your attempt
A. (-1152)
Concept
(a_8=9(-2)7=-1152). In exams, an odd power of a negative ratio is negative.
Why this answer is correct
The correct answer is A. (-1152). (a_8=9(-2)7=-1152). In exams, an odd power of a negative ratio is negative.
Exam Tip
(a_8=9(-2)7=-1152) है। परीक्षा में ऋणात्मक अनुपात की विषम घात ऋणात्मक होती है।
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