Recent content by psc109

Re: Intiger Concepts Thank you Chisigma, the example you gave does not start with one and does not have a negative 1 at the end. Why is it there in the the example i was given? Why subtract 1 at the end when if say I started it 8 I would not subtract 8 at the end.

Can some one explain to my why an integer equation that starts with 1 has a -1 at the end of the equation. example: 1 + 2 + 4 + 8 + 16 ... + 2 ^ N = 2 x ( 2 ^ N ) - 1 Conceptually where does the rule come from that there is a minus at the end of the equation. It starts with an odd number...