Question

Помогите пожалуйста найти область определения функции!!!!
f(x)= √(x-7)+√(10-x)

Answer 1

$f(x)= \sqrt{x-7}+ \sqrt{10-x}\\D(f)=?\\\\ \left \{ {{x-7 \geq 0} \atop {10-x \geq 0}} \right. =\ \textgreater \ \left \{ {{x \geq 7} \atop {x \leq 10}} \right. =\ \textgreater \ x\in [7;10]\\\\D(f)=[7;10]$