Mathematics

Mathematics

Problem

Which of the following is the domain of p(x)=9−2xx2−9p(x)=\dfrac{\sqrt{9-2x}}{x^{2}-9}? a) (−∞,4.5](-\infty,4.5] b) (−∞,−3)∪(−3,3)∪(3,4.5)(-\infty,-3)\cup(-3,3)\cup(3,4.5) c) (−∞,−3)∪(−3,3)∪(3,4.5](-\infty,-3)\cup(-3,3)\cup(3,4.5] d) (−∞,−3]∪[3,4.5)(-\infty,-3]\cup[3,4.5)

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