find the sum of the series of (-2)^n/3^n+1.
This is an alternating series...
what if we rewrite it as
an= (1/3)* (-2/3)^(n)
Divide any nth term by the n-1 term and see if you get a ratio term r. This might be a geometric series.
This is an alternating series...
what if we rewrite it as
an= (1/3)* (-2/3)^(n)
Divide any nth term by the n-1 term and see if you get a ratio term r. This might be a geometric series.
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