Math, asked by shubhamkumar81, 11 months ago

plzzz help me
question is of class 11 kc sinha math book
ch is geometric progression

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Answers

Answered by abhinavsmily2002
2

Answer:


Step-by-step explanation:

sum of 1st n terms is ........ a*(r^n - 1)/(r-1)

sum of next n terms.....{ starting with a*r^n .......)is    a*r^n (r^n -1)/(r-1)..

Therefore the required ration is 1/r^n


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