A little unclear,could you write it again or send the original photo please?
i dont have original soo sorry
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
Is the answer very weird
Yes @Ajay_2020_1, simplifies to 1.208