0 votes 0 votes Deepalitrapti asked Aug 25, 2018 Deepalitrapti 587 views answer comment Share Follow See all 12 Comments See all 12 12 Comments reply Shaik Masthan commented Aug 25, 2018 reply Follow Share i am getting option A and option D 0 votes 0 votes MiNiPanda commented Aug 25, 2018 reply Follow Share Shaik Masthan How D? X and Y represent single attribute right? 0 votes 0 votes Shaik Masthan commented Aug 25, 2018 reply Follow Share then it is trivial FD 0 votes 0 votes MiNiPanda commented Aug 25, 2018 reply Follow Share No i didn't mean it that way.. i meant is X representing a group of attributes like X=ABC and Y=CDE ..like this.. 0 votes 0 votes Shaik Masthan commented Aug 25, 2018 reply Follow Share then also it holds good.... where you facing it is not correct, give me that example. 0 votes 0 votes MiNiPanda commented Aug 25, 2018 reply Follow Share I am not understanding how D is correct.. getting A only :/ If X and Y are single attribute then how can X+⊆ Y ? 0 votes 0 votes Shaik Masthan commented Aug 25, 2018 reply Follow Share if X->Y, then X ⊇ Y -----------------> is it right? i assumed this is right, but now i am in doubt. 0 votes 0 votes MiNiPanda commented Aug 25, 2018 reply Follow Share if X->Y then X+={XY}. Then it should be written as X+⊇Y right? :/ 0 votes 0 votes Shaik Masthan commented Aug 25, 2018 reply Follow Share yes... i made that mistake ===> i am getting Option D option D is true if Y is replaced by Y+. 0 votes 0 votes MiNiPanda commented Aug 25, 2018 reply Follow Share " i am getting Option D " ? You mean option A? 0 votes 0 votes Deepalitrapti commented Aug 26, 2018 reply Follow Share A is the answer 0 votes 0 votes Shaik Masthan commented Aug 26, 2018 reply Follow Share @MiNiPanda, due to that mistake i got D also as answer..... by realizing that mistake, the Answer should be A 0 votes 0 votes Please log in or register to add a comment.