Functions Question 287

Question: Domain of the function $ \log |x^{2}-9| $ is

Options:

A) R

B) $ R-[-3,\ 3] $

C) $ R-{-3,\ 3} $

D) None of these

Show Answer

Answer:

Correct Answer: C

Solution:

For $ x=-3,3,,|x^{2}-9|,=0 $ Therefore $ \log ,|x^{2}-9|, $ does not exist at $ x=-,3,3. $ Hence domain of function is $ R-{ -,3,3 }. $