The sum of the series 2/3 + 8/9 + 26/27 + 80/81 + ....... to n terms is
a) n - 1/2 ( 3^ -n - 1)
b) n - 1/2 (1 - 3^-n)
c) n + 1/2( 3^n - 1)
d) n - 1/2( 3^n - 1)
Asked by ahuja8087 | 16th Nov, 2015, 04:51: PM
Expert Answer:
Answered by Rashmi Khot | 17th Nov, 2015, 09:04: AM
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