Book Maths Puzzle

A (INTERSECTION) (B-C)=A (INTERSECTION) B - A (INTERSECTION) C

Read Solution (Total 2)

distributive law
12 years agoHelpfull: Yes(5) No(2)

what's the qn ?
12 years agoHelpfull: Yes(1) No(2)

Book Other Question

What is the smallest positive integer k such that (2000)(2001)k is a perfect sqaure ? 9
3 4
1 5 16
? 14 7 23