Asked by Suzanne
I need to find the domain of
f(x) = (3x+3)/ (x^2 -3).
I keep getting (U SQUARE Root of 3 and - Square root of 3 U ) Does that mean that the answer is all real numbers?
I know that x can not=3, What am I doing wrong? Thanks.
f(x) = (3x+3)/ (x^2 -3).
I keep getting (U SQUARE Root of 3 and - Square root of 3 U ) Does that mean that the answer is all real numbers?
I know that x can not=3, What am I doing wrong? Thanks.
Answers
Answered by
MathMate
x² cannot be 3, so
x cannot be √3 nor -√3.
The domain is therefore
R - (√3∪-√3)
x cannot be √3 nor -√3.
The domain is therefore
R - (√3∪-√3)
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