s=1*2\3 +2*3\3^2+3*4\3^3.......infinity?then 4s=
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here is the answer friend:
2/3+6/9+12/27
= 2/3+2/3+12/27
=( 18+18+12)/27
= 48/27
=1.777778(approx)
=1.8
there fore, 4s= 4*1.8
= 7.2//
hope it helps you a lot.
thank you very much
2/3+6/9+12/27
= 2/3+2/3+12/27
=( 18+18+12)/27
= 48/27
=1.777778(approx)
=1.8
there fore, 4s= 4*1.8
= 7.2//
hope it helps you a lot.
thank you very much
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