Question

find the sum of the series:-

Answer 1

It's A.
http://www.wolframalpha.com/input/?i=summation&a=*C.summation-_*Calculator.dflt-&f2=%28-1%29%5Ek+%28%28ln3%29%2F%28ln+%283%5E%28k%2B2%29%29%29%29&f=Sum.sumfunction_%28-1%29%5Ek+%28%28ln3%29%2F%28ln+%283%5E%28k%2B2%29%29%29%29&f3=0&f=Sum.sumlowerlimit_0&f4=infinity&f=Sum.sumupperlimit_infinity&a=*FVarOpt.1-_**-.***Sum.sumvariable---.*--

Answer 2

how come answer

Answer 3

this is