Question

Find the sum of the G.P. : 9/10 , 9/100 , 9/1000 , 9/10000 ,... to n terms. 

A 2/5(1-(1/10ⁿ))
B 2/9(1-(1/10ⁿ))
C 7/9(1-(1/10ⁿ))
D (1-(1/10ⁿ))
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