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Answer to Question #42279 in Calculus for shasha

Question #42279
Determine the domain of the function.


f(X)=square root 7+x


help me please how can i solve it
Expert's answer
We know that the function under the even root should be no negative
So we have
7+x>=0 or x>=-7
Answer:domain is x in [-7; infty).

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