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The function f satisfies f(sqrt x+1)=1/x. For all x is greater than or equal to -1, x is not equal to 0. What is f(2)?

 Jul 17, 2018
 #1
avatar+27480 
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I’ll assume that by sqrt x+1 you mean sqrt(x+1).

 

Set sqrt(x+1) = 2

x+1 = 4

x = 3

 

So f(2) = 1/3

.

 Jul 17, 2018

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