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How do I simplify / shorten this. I know it’s supposed to be 1+(-1)^n
marciadorsey
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One way:
(2^(n) + (-2)^(n))/2^(n) =
2^(n)/2^(n) + (-2)^(n)/2^(n) =
(2/2)^(n) + (-2/2)^(n) =
1^(n) + (-1)^(n) =
1 + (-1)^(n)
sd_saurav
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Looking at it the easiest way would be to go
2^(n)+(-2)^(n)/2
(2/2)(1^(n)+(-1)^(n))/1
2/2=1 and m/1=m and 1^n =1
Therefore
1+(-1)^n
WhiteClaw
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WhiteClaw
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= 2^n / 2^n + (-2)^n / 2^n
>!= 1 + (-2/2)^n!<
IMPAOficial
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IMPAOficial
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