गुणोत्तर श्रेढ़ी \(8,24,72,216,\ldots\) के पहले (4) पदों का योग क्या है?
What is the sum of the first (4) terms of the geometric progression \(8,24,72,216,\ldots\)?
Explanation opens after your attempt
C. (320)
Concept
The sum is (8+24+72+216=320). For a small number of terms direct addition is safe.
Why this answer is correct
The correct answer is C. (320). The sum is (8+24+72+216=320). For a small number of terms direct addition is safe.
Exam Tip
योग (8+24+72+216=320) है। कम पद हों तो सीधे जोड़ना सुरक्षित है।
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