Mathematics

Mathematics

Problem

Let f(x)={5−2x,x<2,1x−2,x≥2.f(x)=\begin{cases}\sqrt{5-2x}, & x<2,\\ \dfrac{1}{x-2}, & x\ge 2.\end{cases} Determine the domain of ff. a) (−∞,2)∪[2,∞)(-\infty,2)\cup[2,\infty) b) (−∞,2.5](-\infty,2.5] c) (−∞,2)∪(2,∞)(-\infty,2)\cup(2,\infty) d) (−∞,2)∪(2,2.5](-\infty,2)\cup(2,2.5]

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