Set, Relation and FunctionHard
Question
If A and B are disjoint, then n(A ∪ B) is equal to-
Options
A.n(A)
B.n(B)
C.n(A) + n(B)
D.n(A) . n(B)
More Set, Relation and Function Questions
Let f:R → , where f(x) = tan-1 , then-...Let R {(3, 3), (6, 6), (9, 9), (12, 12) (6, 12) (3, 9) (3, 12), (3, 6)} be a relation on the set A = {3, 6, 9, 12}. The ...Let A(h, k), B(1, 1) and C(2, 1) be the vertices of a right angled triangle with AC as its hypotenuse. If the area of th...If f(x) = (where [.] and {.} represent greatest integer and fractional part function respectively), then -...Let R = {(3, 3), (6, 6), (9, 9), (12, 12), (6, 12), (3, 9), (3, 12), (3, 6)} be a relation on the set A = {3, 6, 9, 12} ...