Pre Calc

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For the sequence, write an explicit formula for the nth term.

1/5, 2/7, 3/9, 4/11...

I don't know how to start. I have other sequences also, so I need to learn, not just get the answer. Thank You

  • Pre Calc -

    top is just 1,2,3,4, ...n
    top = n
    bottom would be 2 n but have to start with 5 when n = 1 and 2n=2 so
    bottom = (3+2n)
    so
    An = n/(3+2n)

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