A) \[[x:1<x\le 2]\]
B) \[[x:1\le x<2]\]
C) \[[x:1\le x\le 2]\]
D) None of these
Correct Answer: B
Solution :
\[A=[x:x\in R,\,-1<x<1]\] \[B=[x:x\in R:x-1\le -1\] or \[x-1\ge 1]\] = \[[x:x\in R:x\le 0\text{ or }x\ge 2]\] \[\therefore \]\[A\cup B=R-D\], where D = \[[x:x\in R,\,1\le x<2]\].You need to login to perform this action.
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