Question

2 case study based problem from each chapter of mathematics class 10 . ​

Answer 1

Step-by-step explanation:

usual, prove it using the general heuristic that

X=YX=Y if and only if X⊆Y and X⊇Y.X⊆Y and X⊇Y.

In other words, take a generic element of A×(B−C)A×(B−C) and show that it also must be an element of (A×B)−(A×C)(A×B)−(A×C), and vice versa.