SOLUTION: 1. Find the domain of the expression (x^2 - 1)/x.
Domain = {x | x cannot be 0}.
2. Find domain of the expression x/(x^2 + 9).
The domain for question 2 does not exist over
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Question 1208403: 1. Find the domain of the expression (x^2 - 1)/x.
Domain = {x | x cannot be 0}.
2. Find domain of the expression x/(x^2 + 9).
The domain for question 2 does not exist over the real numbers. In later chapters, the idea of complex numbers is talked about. I say domain does not exist.
You say?
Answer by ikleyn(52788) (Show Source): You can put this solution on YOUR website!
.
Your answer to (1) is correct.
Your answer to (2) is incorrect.
The correct answer to (2) is "the domain is the set of all real numbers",
or any other equivalent form to say it.
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Comment from student : Are you saying that the answer to question 2 should be domain = (-infinity, infinity)?
My response : Why do you ask again ? Isn't my answer complete and clear?
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