Progression (Sequence and Series)Hard
Question
If the sum of the series 
= S, for |r| < 1 then the sum of the series 
is :-
= S, for |r| < 1 then the sum of the series is :-Options
A.S2
B.
C.
D.
Solution
= S ⇒ 1 + r + r2 +.....∞ = S⇒
= S ⇒ r = 
Now
= 1 + r2 + r4 + ..... ∞
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