1.f(x)={[x],x<2 [x]−1,x≥2f(x)=\begin{cases}[x],&x<2\ [x]-1,&x\ge2\end{cases}f(x)={[x],x<2 [x]−1,x≥2 cont ina.[1,2)∪(2,3)[1,2)\cup(2,3)[1,2)∪(2,3)b.[1,3)[1,3)[1,3)c.(1,3)(1,3)(1,3)d.R\mathbb{R}RLogin to continueOnly logged in users canattempt or see the solution.