गुणोत्तर श्रेणी \(2,6,18,54,\ldots\) के पहले (6) पदों का योग क्या है?

What is the sum of the first (6) terms of the geometric progression \(2,6,18,54,\ldots\)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

C. (728)

Step 1

Concept

The sum of the first (6) terms is (2\(3^6-1\)/(3-1)=728). In exams use (S_n=\frac{a\(r^n-1\)}{r-1}) for (r>1).

Step 2

Why this answer is correct

The correct answer is C. (728). The sum of the first (6) terms is (2\(3^6-1\)/(3-1)=728). In exams use (S_n=\frac{a\(r^n-1\)}{r-1}) for (r>1).

Step 3

Exam Tip

पहले (6) पदों का योग (2\(3^6-1\)/(3-1)=728) है। परीक्षा में (r>1) के लिए (S_n=\frac{a\(r^n-1\)}{r-1}) लगाएँ।

Question me issue ya doubt hai?

Answer, explanation, typing mistake ya suggestion directly hamari team ko bhejein. 📱Helpline (Call / WhatsApp): +91 7272824365

Related Mathematics Questions

FAQs

Mathematics Answer, Explanation and Revision Hints

गुणोत्तर श्रेणी \(2,6,18,54,\ldots\) के पहले (6) पदों का योग क्या है? / What is the sum of the first (6) terms of the geometric progression \(2,6,18,54,\ldots\)?

Correct Answer: C. (728). Explanation: पहले (6) पदों का योग (2\(3^6-1\)/(3-1)=728) है। परीक्षा में (r>1) के लिए (S_n=\frac{a\(r^n-1\)}{r-1}) लगाएँ। / The sum of the first (6) terms is (2\(3^6-1\)/(3-1)=728). In exams use (S_n=\frac{a\(r^n-1\)}{r-1}) for (r>1).

Which concept should I revise for this Mathematics MCQ?

The sum of the first (6) terms is (2\(3^6-1\)/(3-1)=728). In exams use (S_n=\frac{a\(r^n-1\)}{r-1}) for (r>1).

What exam hint can help solve this Mathematics question?

पहले (6) पदों का योग (2\(3^6-1\)/(3-1)=728) है। परीक्षा में (r>1) के लिए (S_n=\frac{a\(r^n-1\)}{r-1}) लगाएँ।