CBSE Class 11-science Answered
FIND
Asked by | 23 Sep, 2008, 10:23: PM
Expert Answer
let Sn denote the sum of n terms
S1 = a1 = 8 = a =first term
S2 = a1+a2 = 22 ==> a2 = 14
d = a2 -a1 = 6
so 164 = a+(m-1)d
164 = 8 +(m-1)6
m = 27
Answered by | 24 Sep, 2008, 12:33: AM
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