Question

Sum of 2,-1/2,1/8,.............

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

8/5

Step-by-step explanation:

a=2 d=(-1/2)/2= -1/4

sum of infinite terms= a/(1-r)

sum= 2/[1-(-1/4)]

=2/[(4+1)/4]

=(2×4)/5

=8/5