kashifhankhaitran kashifhankhaitran

22-08-2022
Mathematics

contestada

Suppose f(x) = 2^-x +1. Find a such that f(a) = 3.

Respuesta :

chintw0 chintw0

22-08-2022

Answer:

a = -1

Step-by-step explanation:

let [tex]2^{-x}+1[/tex] be 3

solve for x:

[tex]2^{-x}+1=3\\2^{-x}=2\\-x=log2(2)\\-x=1\\x=-1[/tex]

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