गुणोत्तर श्रेढ़ी \(2,6,18,\ldots\) का (6)वाँ पद क्या है?
What is the (6)th term of the geometric progression \(2,6,18,\ldots\)?
Explanation opens after your attempt
D. (486)
Concept
Here (r=3), so \(a_6=2\cdot3^5=486\). Use \(a_n=ar^{n-1}\) in a geometric progression.
Why this answer is correct
The correct answer is D. (486). Here (r=3), so \(a_6=2\cdot3^5=486\). Use \(a_n=ar^{n-1}\) in a geometric progression.
Exam Tip
यहाँ (r=3), इसलिए \(a_6=2\cdot3^5=486\)। गुणोत्तर श्रेढ़ी में \(a_n=ar^{n-1}\) लगाएं।
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