find the sum of gp 2,-1/2,1/8,...........,n,12 term

karana singh

Oct. 16, 2017, 6:53 p.m.

Answers!

Anubhav Singh

Oct. 16, 2017, 7:52 p.m.

First term is 2 (a)
Common ratio is -1/4 (r)

Sum = a(r^n-1)/r-1

All the best !!

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