Question

If B={ },then n(B) =?​

Answer 1

Answer:

Here B is a null set .

i.e it has no elements.

Hence n(B) = 0

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Answer 2

Answer:

Since n(B) means the number of terms inside the set B, ... here, it is given that B={1,7,2,0,6} which we count we find their no. 5.

Answer:5Step-by-step explanation:Since n(B) means the number of terms inside the set B,We

Answer:5Step-by-step explanation:here, it is given that B={1,7,2,0,6} which we count we find

Step-by-step explanation:

IF B={1,7,2,0,6} then n(B)=

5 6 7 9 Answer: A

Step by step solution by experts to help you in doubt clearance & scoring excellent marks in examsIf A⊂ B, n(A) = 5 and n(B) = 7 , then n(A∪ B) =

Given A ⊂ B , n(A) = 5 and n(B) = 7 Since, A ⊂ B all the elements of set A are also present in set B n(A ∩ B) = 5 Since, n(A∪ B) = n(A) + n(B)