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    				| 1. | Solve: `(x-3)/(x+4)gt0,x in R` | 
| Answer» Correct Answer - `(-oo,-4)uu(3,oo)` `(x-3ltandx+4lt0)or(x-3gt0andx+4gt0)` `rArr(xlt3 andxlt-4)or(xgt3andxgt-4)` `rArr (xlt-4) or (xgt3) rArr x in(-oo,-4) uu(3,oo)`. | |