CBSE Class 11-science Answered
solve the followed question:
Asked by | 06 Jul, 2008, 11:47: PM
Expert Answer
the sum of infinite G.P. whose first term is a and geometric ratio is r , is equal to S = a / (1-r)
so Sp = 1/ (1-rp) and sp = 1/ (1+rp)
Sp+ sp = 1/ (1-rp) + 1/ (1+rp) = 2 / (1-r2p) = 2S2p
Answered by | 12 Sep, 2008, 11:59: PM
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