Question

Люди добрые, решите срочно плззз

Answer 1

$5)\; \; f(x)=\sqrt{x-2}+\frac{7}{x^2-16}\\\\f(x)=\sqrt{x-2}+\frac{7}{(x-4)(x+4)}\\\\OOF:\; \; \left \{ {{x-2\geq 0} \atop {(x-4)(x+4)\ne 0}} \right. \; \left \{ {{x\geq 2} \atop {x\ne \pm 4}} \right. \; \; \Rightarrow \; \; x\in [\, 2,4)\cup (4,+\infty )$