যদি A = {1, 2, 3} এবং B = {2, 3, 5} হয়, তবে A-B = কত?

A {2,3}

B {5}

C {1}

D {3,5}

Solution

Correct Answer: Option C

A-{1 ,2, 3}
B=(2,3,5)

∴A/B={1 ,2, 3}/(2,3,5)
          ={1}

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