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

R

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R - [- 3, 3]

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R - {- 3, 3}

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None of these

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Solution

The correct option is C $R - {- 3, 3}$
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 $R - {- 3, 3}$ .

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