A = {1, 2, 3} B = ∅ হলে A ∪ B = কত?

A = {1, 2, 3} B = ∅ হলে A ∪ B = কত?

A {1, 2, 3}

B {2, 3, ∅}

C {1, 2, ∅}

D ∅

Solution

Correct Answer: Option A

দেওয়া আছে,
A = {1, 2, 3}
B = ∅
A ∪ B ={1, 2, 3} ∪ { ∅}
={1, 2, 3}