C and D are sets of real numbers defined as follows

Question

C ={ w | w > 2 }

 

D = { w | w ≥ 7 }

 

Write C ∪ D and C n D using interval notation.
If the set is empty, write ∅

 

Answer 1

 

C ∪ D = { w | w > 2 }

 

C n D = { w | w ≥ 7 }