A) \[(1,\,5]\]
B) \[[1,\,5]\]
C) \[(2,6]\]
D) \[[5\,,8)\]
Correct Answer: A
Solution :
[a] \[-4\le x<2\] \[\Rightarrow \,\,\,\,-2\le x+2<4\] \[\Rightarrow \,\,\,0\le \,|x+2|<4\] \[\Rightarrow \,\,-5\le \,|x+2|-5<-1\] \[\Rightarrow \,\,\,1\le ||x+2|-5|\le 5\]You need to login to perform this action.
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