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| 1. |
Solve this statement {x/2x+6=0,xEz} |
| Answer» 2 (X+2)(x 2 −5x+6) =1}2 (x+2)(x 2 −5x+6) =20 ⇒x=−2,2,3A={−2,2,3}B={xϵZ:−3<2x−1<9}B={0,1,2,3,4}A × B has is 15 ELEMENTS so NUMBER of subsets of A × B is 2 15. | |