wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

If S is the sum to infinity of a G.P., whose first term is a, then the sum of the first n terms is [UPSEAT 2002]

A
S(1aS)n
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
S[1(1aS)n]
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
a[1(1aS)n]
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
None of these
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B S[1(1aS)n]
Let r be the common ratio of the G.P. Then
S=a1rr=1aS

Now Sn = Sum of n terms
=a(1rn1r)=a1r(1rn)=S[1(1aS)n].

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Geometric Progression
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon