NIMCET 2026 — Mathematics PYQ
NIMCET | Mathematics | 2026The set (AΔB)∩C is not equal to
Choose the correct answer:
- A.
(A∩C)Δ(B∩C)
- B.
((A∩Bc)∩C)∪((B∩Ac)∩C)
(A∩B)c∩C
Explanation
To solve this, we first recall the definition of the symmetric difference of two sets A and B:
AΔB=(A∖B)∪(B∖A)=(A∩Bc)∪(B∩Ac)
Given the expression (AΔB)∩C, we can distribute ∩C into the definition:
(AΔB)∩C=((A∩Bc)∪(B∩Ac))∩C
=((A∩Bc)∩C)∪((B∩Ac)∩C)
This matches option (c), confirming it is correct.
Explanation
To solve this, we first recall the definition of the symmetric difference of two sets A and B:
AΔB=(A∖B)∪(B∖A)=(A∩Bc)∪(B∩Ac)
Given the expression (AΔB)∩C, we can distribute ∩C into the definition:
(AΔB)∩C=((A∩Bc)∪(B∩Ac))∩C
=((A∩Bc)∩C)∪((B∩Ac)∩C)
This matches option (c), confirming it is correct.
