SOLUTION: C and D are sets of real numbers defined as follows. C={x|x<4} D={x|x&#8805;7} Write C&#8745;D and C&#8746;D using interval notation.

Algebra ->  Real-numbers -> SOLUTION: C and D are sets of real numbers defined as follows. C={x|x<4} D={x|x&#8805;7} Write C&#8745;D and C&#8746;D using interval notation.      Log On


   



Question 1105813: C and D are sets of real numbers defined as follows. C={x|x<4} D={x|x≥7} Write C∩D and C∪D using interval notation.
Answer by ikleyn(52914) About Me  (Show Source):
You can put this solution on YOUR website!
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C n D = empty set = phi.


C U D =  (-infinity,4) U [7,infinity).