Answers

2014-03-20T19:44:34+05:30
A= 1/9
d= 1/27 - 1/9 = -2/27
n = 27.
Sn = n/2{2a+(n-1)d}
=27/2{2(1/9)+(26-1)(-2/27)}
=17/2 X (-46/2)
= -23.

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Akanksha Jain
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