Question

Are the given sets disjoint? A={X:X²-25=0},B={X:X²-4x=0}​

Answer 1

Answer :-

Yes! the sets A and B are disjoints.

Explanation :-

For A, dom(A) = {5,-5}

For B, dom(B) = {0,4}

Clearly, dom(A) $\cap$ dom(B) = $\phi$

Hence, set A and set B are disjoint sets.