what is the domain of 1/sqrt(9-x^2)
The domain is all values of x from minus infinity to plus infinity except for x=-3 and x=3, because at these two values the denominator is zero and division by zero is not allowed.
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I think Alan must have missed the division sign......[no big deal..... ]
The domain is (-3, 3)
Here's the graph : https://www.desmos.com/calculator/8smgrycv69
