गुणोत्तर श्रेढ़ी \(8,24,72,\ldots\) का (4)वाँ पद क्या है?
What is the (4)th term of the geometric progression \(8,24,72,\ldots\)?
Explanation opens after your attempt
C. (216)
Concept
The common ratio is (3), so \(a_4=8\cdot3^3=216\). In a geometric term, the exponent of the ratio is (n-1).
Why this answer is correct
The correct answer is C. (216). The common ratio is (3), so \(a_4=8\cdot3^3=216\). In a geometric term, the exponent of the ratio is (n-1).
Exam Tip
सार्व अनुपात (3) है, इसलिए \(a_4=8\cdot3^3=216\)। गुणोत्तर पद में अनुपात की घात (n-1) होती है।
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