गुणोत्तर श्रेढ़ी \(3,-12,48,-192,\ldots\) में \(a_6\) क्या होगा?
What will \(a_6\) be in the geometric progression \(3,-12,48,-192,\ldots\)?
Explanation opens after your attempt
D. (-3072)
Concept
Here (r=-4), so (a_6=3(-4)5=-3072). An odd power of a negative ratio gives a negative value.
Why this answer is correct
The correct answer is D. (-3072). Here (r=-4), so (a_6=3(-4)5=-3072). An odd power of a negative ratio gives a negative value.
Exam Tip
(r=-4) है, इसलिए (a_6=3(-4)5=-3072)। विषम घात पर ऋणात्मक अनुपात का मान ऋणात्मक होता है।
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