1 votes 1 votes Question Which of the following is NOT True ? Statement 1 : A-( B-C )=(A-B) - (A-C) Statement 2 : A$\bigtriangleup$(B$\cup$C)= (A $\bigtriangleup$B)$\cup$(A$\bigtriangleup$C) here "Triangle " symbole mean -->EXOR My A pproach statement1 Statement 2 Set Theory & Algebra set-theory&algebra + – pC asked Jun 19, 2016 edited Jan 8, 2018 by Prateek kumar pC 726 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
Best answer 2 votes 2 votes your answer is correct.none of them is right sourav. answered Jun 19, 2016 selected Jun 20, 2016 by pC sourav. comment Share Follow See 1 comment See all 1 1 comment reply pC commented Jun 20, 2016 reply Follow Share Thank you so much :) 0 votes 0 votes Please log in or register to add a comment.
1 votes 1 votes Best approach for such type questions is : we can write B-C = BCC A-(B-C) = A(BCC)C = ABC + AC (A-B) - (A-C) = ABC (ACC)C = ABCC SO, that's why this is not equal. for statement 2, you can check by same method that is also not true Deepak Sharma answered Jun 19, 2016 Deepak Sharma comment Share Follow See 1 comment See all 1 1 comment reply pC commented Jun 20, 2016 reply Follow Share Thanks for teaching a new method :) 0 votes 0 votes Please log in or register to add a comment.