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    				| 1. | Solve `|x|gt4, " when "x inR`. | 
| Answer» Correct Answer - `x in (-oo,-4)uu(4,oo)` Using `|x|gta iff x. lt-aorxgta`, we get `|x|gt4 iffxlt-4orxgt4` `iff x in(-oo,-4)uu(4,00)`. | |