How many different nature number can be formed lying between 1000and 10000 out of the digits 0,1,2,5,7,9,?how many of them will neither divisible by 5 nor by 2?
A={xbelong to Z :0<=x<=10} ,B={xbelong to:5<=x<=15}, C={x beolng to Z:x>=5} , D ={x belong to Z:x<=15} find 1. AUB 2.B-C 3. A-D