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Grade: 11

                        

if the third term of gp is two divided by nine and sum of infinite terms is three divided by two then find the series

3 years ago

Answers : (1)

Shailendra Kumar Sharma
188 Points
							
ar2=2/9
a/(1-r)=3/2
so division will lead to 
r2(1-r) =2/9*2/3
r2(1-r)=4/27
r=2/3
So the a=1/2 and the seris be ½ , 1/3 , 2/9, 4/27 ….
3 years ago
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