Question

If P = { 1, 2, 3, 5 ,7 } & Q = {1 , 3, 6, 10, 15 } then , n (P U Q) = ? ​

Answer 1

Answer:

haven't been able to reach expert

Answer 2

n (P ∪ Q) = 8

Given :

P = { 1 , 2 , 3 , 5 , 7 } & Q = { 1 , 3 , 6 , 10 , 15 }

To find :

The value of n (P ∪ Q)

Solution :

Step 1 of 3 :

Write down the given sets

The given sets are

P = { 1, 2, 3, 5 ,7 }

Q = {1 , 3, 6, 10, 15 }

Step 2 of 3 :

Find the set P ∪ Q

P ∪ Q

= { x : x ∈ P ∨ x ∈ Q }

= { 1 , 2 , 3 , 5 , 6 , 7 , 10 , 15 }

Step 3 of 3 :

Find n (P ∪ Q)

Hence n (P ∪ Q)

= Number of elements in P ∪ Q

= 8

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