Question

say the direct answer anyone plz
1. If A={x:x2−5x+6=0}  and  B={x:x2−8x+15=0}, then A−B=

2.If A={2,3,4,5,6},B={3,4,5} and C={4,5,6} , then A−(B∩C)=


3.The number of all possible proper subsets of {2,3,5} is​

Answer 1

1- a-b = 564 ateera
/ ans
2- i think so -34/25=512 ans
3- 630 ans u can also do bodmas