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I need domain

 

Let

f(x) = \frac{2x + 3}{x - 7} + \sqrt{-1/x}
Find the domain of f.  Give your answer using interval notation.

 Dec 20, 2023
 #1
avatar+126978 
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\(\frac{2x + 3}{x - 7} + \sqrt{-1/x} \)

 

Domain  of  first function  =   (-inf, 7) U ( 7 , inf)

 

Domain of second  function  =  (-inf , 0)

 

Most restrictive interval  is   ( -inf , 0) =  domain

 

 

cool cool cool

 Dec 20, 2023

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