SOLUTION: Domain of sqrt of x^2 -16

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Question 517034: Domain of sqrt of x^2 -16
Answer by Gogonati(855) About Me  (Show Source):
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The domain of this function is the solution of inequality x^2-16≥0, or in set notation {x|x≤-4 or x≥4}. While in interval notation will be:
(-infinity, -4) or (4, infinity)