Question

2º) Explicite o domínio D das seguintes funções:


A) f(x) = 1/ |x-10|


b) h(x)=√x-1|-1​

Answer 1

$\boxed{\begin{array}{l}\tt A)\\\sf |x-10|~\ne0\\\sf x-10\ne0\\\sf x\ne10\\\sf D=\{x\in\mathbb{R}/x\ne-10\}\\\tt B)\\\sf x-1\geqslant0\\\sf x\geqslant1\\\sf D=\{x\in\mathbb{R}/x\geqslant1\}\end{array}}$