Tag: Sets – Class XI – Exercise 1.6

Sets – Class XI – Exercise 1.6
If X and Y are two sets such that n(X) = 17, n(Y) = 23 and n(X ∪ Y) = 38, find n(X ∩Y). Solution: It is given that: n(X) = 17, n(Y) = 23, n(X ∪ Y) = 38 n(X ∩ Y) = ? We know that, n(X ∩Y) = n(X) + n(Y) – […]