Question

SECTION A
1
Let A and B be two sets such that AUB=A then AnB is equal to
a) 0
b) B
d) None of these
C) A
Let U be the set of all triangles in a plane. If A is the set of all triangles with at least
one angle different from 60° then A'( complement of A) is equal to
a) Set of all right triangles
b) Set of all isosceles triangles
c) Set of scalene triangles
d) None of these
Let A ={a,b,c} The total number of relations that can be defined from A to A is
a) 23
b) 26
c) 29
d) None of these
3​

Answer 1

Answer:

Step-by-step explanation:A ba d