trishinada63 trishinada63

17-09-2017
Mathematics

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Given f (x) = 2^-x, express f (-(x+1)) times f (-3x). PLEASE HELP!!

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temp102 temp102

17-09-2017

subsitute -(x+1) or -x-1 for x

[tex]f(-(x+1))=2^{-(-(x+1))}[/tex]
double negatives cancel
[tex]f(-(x-1))=2^{x+1}[/tex]

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