CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Find an infinite G.P. whose first term is 1 and each term is the sum of all the terms which follow it.


Solution

a = 1

an=an+1+aa+2+an+3+....

arn1+arn+arn+1+arn+2+....

arn1=arn(1+r+r2+....

1=r(11r)

1r=r

1=2r

r=12

G.P. is 1,12,14,18,.....

Thus the infinite.

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


Same exercise questions
View More


People also searched for
View More



footer-image