Doubt from Sequence and series

@Hari_Shankar sir , @Jagdish_Singh sir ,
@Ajay_2020_1

A little unclear,could you write it again or send the original photo please?

i dont have original soo sorry

1-2^100/3 ,0?


n=100

2/3?

Ignore post #7

I got it,I will post it in a minute

Yep yep yep sorry 2/3(1-(1/2)^100)

approach?? common ratio =-1/2

1 Like

full solution??

Try this:)

root97/6

No

Is the answer very weird

Yes @Ajay_2020_1, simplifies to 1.208