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Let A = {x:x belongs to R, |x|= 1} and AUB = R-D , then the set D is : – {x:1 {x:1 {x:1 none of these

Let A = {x:x belongs to R, |x|= 1}
and AUB = R-D , then the set D is : – 
  1. {x:1
  2. {x:1
  3. {x:1
  4. none of these

Grade:12th pass

1 Answers

Arun
25750 Points
4 years ago
Dear Shivansh
 
A={.9999 , ......... , -.99999}
B=(inf,2] U [0,-inf)
hence A U B= {inf,2] U [0,-inf) U {.9999 , ...... , -.9999}
=R-D
hence D must be {1.999 , ......1}
hence the answer is 1

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