Question

PLZ HURRY IT'S URGENT!!!

Which is the intersection of the sets P = {1, 2, 3, 4}, Q = {4, 5, 6, 7}, and R = {7, 8, 9, 10}?


{7}


null set


{4, 7}


{4}

Answer 1

Explanation:

null set

Answer 2

Option B.

Explanation:

Intersection of two sets is a set of common terms in both the sets.

Now the two sets are P = {1, 2, 3, 4}, Q = {4, 5, 6, 7} and R = {7, 8, 9, 10}

Common terms in P and Q,

P∩Q = {∅}

Now the common terms in R and (P∩Q).

(P∩Q)∩R = {∅}

Answer is a null set.

Option B, will be the answer.