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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

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2 Answers

Best answer
2 votes
2 votes

your answer is correct.none of them is right

statement 2

statement 2

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1 votes

Best approach for such type questions is :

                   we can write B-C = BCC

                     A-(B-C) = A(BCC)= 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

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