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  1. F

    A simple sequences

    my problem is regarding sequences: Sum first 20 terms of a=r^k-1 terms are 2, 4/3, 8/9,... and ratio is 2/3 and r < 1 so its an inflated series and 2(2/3)^19 = .009021859795 BUT it is an inflated series right? and my...
  2. F

    Natural log question

    thanks! that was it! thanks!
  3. F

    Natural log question

    when trying to solve ln(x+4)=2 i tried this ln(x+4)=2 e^2=(x+4) ln e^2=ln(x+4) 2=ln(x+4) and round and round i go... where do i start to go wrong?